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  • 1. Capmany, J
    et al.
    Ortega, B
    Martinez, A
    Pastor, D
    Popov, M
    RISE, Swedish ICT, Acreo.
    Fonjallaz, P-Y
    Multi-wavelength Single Sidebmodulation for WDM-Radio over Fibre systems using a Fibre Grating Array Tandem device2005In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 17, no 2, p. 471-73Article in journal (Refereed)
  • 2.
    Cristofori, Valentina
    et al.
    Technical University of Denmark, Denmark.
    Da Ros, Francescos
    Technical University of Denmark, Denmark.
    Ozolins, Oskars
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Chaibi, Mohamed E.
    FOTON Laboratory, France.
    Bramerie, Laurent
    FOTON Laboratory, France.
    Ding, Yunhong
    Technical University of Denmark, Denmark.
    Pang, Xiadon
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Shen, Alexandre
    Thales, France.
    Gallet, Antonin
    Thales, France.
    Duan, Guang-Hua
    Thales, France.
    Hassan, Karem
    III-V Lab, France.
    Olivier, Segolene
    III-V Lab, France.
    Popov, Sergei
    KTH - Royal Institute of Technology, Sweden.
    Jacobsen, Gunnar
    Oxenløwe, Leif K.
    Technical University of Denmark, Denmark.
    Peucheret, Christophe
    FOTON Laboratory, France.
    25-Gb/s transmission over 2.5-km SSMF by silicon MRR enhanced 1.55-μm III-V/SOI DML2017In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 29, no 12, p. 960-963, article id 7917280Article in journal (Refereed)
    Abstract [en]

    The use of a micro-ring resonator (MRR) to enhance the modulation extinction ratio and dispersion tolerance of a directly modulated laser is experimentally investigated with a bit rate of 25 Gb/s as proposed for the next generation data center communications. The investigated system combines a 11-GHz 1.55-μm directly modulated hybrid III-V/SOI DFB laser realized by bonding III-V materials (InGaAlAs) on a silicon-on-insulator (SOI) wafer and a silicon MRR also fabricated on SOI. Such a transmitter enables error-free transmission (BER < 10-9) at 25 Gb/s data rate over 2.5-km standard single mode fiber without dispersion compensation nor forward error correction. As both laser and MRR are fabricated on the SOI platform, they could be combined into a single device with enhanced performance, thus providing a cost-effective transmitter for short reach applications.

  • 3. Deng, L
    et al.
    Zhao, Y
    Pang, X
    RISE, Swedish ICT, Acreo.
    Tang, M
    Shum, P
    Liu, D
    All-VCSEL Transmitters With Remote Optical Injection for WDM-OFDM-PON2014In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 26, no 5, p. 461-Article in journal (Refereed)
  • 4.
    Djupsjöbacka, A
    RISE, Swedish ICT, Acreo.
    Calculation of Signal Outage due to Polarization-Mode Dispersion2001In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 13, no 7, p. 660-Article in journal (Refereed)
  • 5.
    Djupsjöbacka, A
    et al.
    RISE, Swedish ICT, Acreo.
    Berntson, A
    RISE, Swedish ICT, Acreo.
    Mårtensson, J
    RISE, Swedish ICT, Acreo.
    Kllgren, D
    Measured Temporal statistics of the DGD RMS-Value in Buried Optical Fibers2009In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 21, no 24, p. 1801-1803Article in journal (Refereed)
  • 6. dos Santos, A B
    et al.
    Jimenez, M R
    von der Weid, J P
    Djupsjöbacka, A
    RISE, Swedish ICT, Acreo.
    Statistical Measurements of BER Fluctuations Due to PMD in 10 Gb/s Optical Transmissions2002In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 14, no 7, p. 926-28Article in journal (Refereed)
  • 7.
    Forzati, M
    et al.
    RISE, Swedish ICT, Acreo.
    Berntson, A
    RISE, Swedish ICT, Acreo.
    Mårtensson, J
    RISE, Swedish ICT, Acreo.
    IFWM Suppression Using APRZ with Optimized Phase-Modulation Parameters2004In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 16, p. 2368-70Article in journal (Refereed)
  • 8.
    Forzati, M
    et al.
    RISE, Swedish ICT, Acreo.
    Berntson, A
    RISE, Swedish ICT, Acreo.
    Mårtensson, J
    RISE, Swedish ICT, Acreo.
    Pincemin, E
    Gavignet, P
    Transmission of 16x40 Gb/s NRZ-OOK Channels Over 2800 km SSMF Using Asynchronous Phase Modulation2009In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 21, p. 131-33Article in journal (Refereed)
  • 9.
    Forzati, M
    et al.
    RISE, Swedish ICT, Acreo.
    Mårtensson, J
    RISE, Swedish ICT, Acreo.
    Berntson, A
    RISE, Swedish ICT, Acreo.
    Djupsjöbacka, A
    RISE, Swedish ICT, Acreo.
    Johannisson, P
    RISE, Swedish ICT, Acreo.
    Reduction of intra-channel four-wave mixing using the alternate-phase RZ modulation format2002In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 14, no 9Article in journal (Refereed)
  • 10. Gomes, A S L
    et al.
    Carvalho, M T
    Sundheimer, M L
    Bastos-Filho, C J
    Martins-Filho, J F
    Costa e Silva, M B
    von der Weid, J P
    Margulis, W
    RISE, Swedish ICT, Acreo.
    Characterization of efficient dual wavelength (1050 nm+800 nm) pumping scheme for thulium doped fiber amplifiers2003In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 25, no 2, p. 200-202Article in journal (Refereed)
  • 11. Junique, S
    et al.
    Agren, D
    Wang, Q
    RISE, Swedish ICT, Acreo.
    Almqvist, S
    Noharet, B
    Andersson, J
    RISE, Swedish ICT, Viktoria.
    A Modulating Retro-Reflector for Free-Space Optical Communication2006In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 18, no 1, p. 85-87Article in journal (Refereed)
  • 12. Kakkar, A.
    et al.
    Navarro, J. R.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Schatz, R.
    Pang, X.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Ozolins, O.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Louchet, H.
    Jacobsen, G.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Popov, S.
    Mitigation of EEPN in Coherent Optical Systems With Low-Speed Digital Coherence Enhancement2015In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 18, p. 1942-1945Article in journal (Refereed)
    Abstract [en]

    A method for mitigating local oscillator (LO) phase noise-induced impairment, also known as equalization-enhanced phase noise, in coherent optical systems is discussed. The method is suitable for real-time implementation and requires hardware with a bandwidth much lower than the signal baud rate, even for a system utilizing conventional semiconductor laser as LO. We evaluate the required parameters like interpolation technique, electrical signal-to-noise ratio at digital coherence enhancement (DCE) front end, for long haul transmission links having quadrature phase shift keying and 16-quadrature amplitude modulation formats. We show that the method can be implemented using a low-speed DCE front end and a simple digital linear interpolator with small (<;1 dB) implementation penalty even in cases that would otherwise result in error floor.

  • 13.
    Kakkar, Aditya
    et al.
    RISE, Swedish ICT, Acreo.
    Navarro, Jaime Rodrigo
    RISE, Swedish ICT, Acreo.
    Schatz, Richard
    Pang, Xiaodan
    RISE, Swedish ICT, Acreo.
    Ozolins, Oskars
    RISE, Swedish ICT, Acreo.
    Louchet, Hadrien
    Jacobsen, Gunnar
    RISE, Swedish ICT, Acreo.
    Popov, Sergei
    Mitigation of EEPN in Coherent Optical Systems with Low Speed Digital Coherence Enhancement2015In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 18, p. 1942-Article in journal (Refereed)
  • 14.
    Leong, Miu Yoong
    et al.
    RISE, Swedish ICT, Acreo. KTH, Optik och Fotonik, OFO.
    Larsen, Knud J.
    Jacobsen, Gunnar
    RISE, Swedish ICT, Acreo. KTH, Optik och Fotonik, OFO.
    Popov, Sergei
    KTH, Optik och Fotonik, OFO.
    Zibar, Darko
    Sergeyev, Sergey
    Interleavers and BCH Codes for Coherent DQPSK Systems With Laser Phase Noise2015In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 7, p. 685-688Article in journal (Refereed)
    Abstract [en]

    The relatively high phase noise of coherent optical systems poses unique challenges for forward error correction (FEC). In this letter, we propose a novel semianalytical method for selecting combinations of interleaver lengths and binary Bose-Chaudhuri-Hocquenghem (BCH) codes that meet a target post-FEC bit error rate (BER). Our method requires only short pre-FEC simulations, based on which we design interleavers and codes analytically. It is applicable to pre-FEC BER similar to 10(-3), and any post-FEC BER. In addition, we show that there is a tradeoff between code overhead and interleaver delay. Finally, for a target of 10(-5), numerical simulations show that interleaver-code combinations selected using our method have post-FEC BER around 2x target. The target BER is achieved with 0.1 dB extra signal-to-noise ratio.

  • 15. Leong, MY
    et al.
    Larsen, K
    Jacobsen, G
    RISE, Swedish ICT, Acreo.
    Popov, S
    Zibar, D
    Sergeyev, S
    Interleavers BCH Codes for Coherent DQPSK Systems with Laser Phase Noise2014In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 7, p. 685-Article in journal (Refereed)
  • 16.
    Li, J
    et al.
    RISE, Swedish ICT, Acreo.
    Andrekson, P A
    Bakshi, B
    Direct Generation of Subpicosecond Chirp-Free Pulses at 10 GHz from a Nonpolarization Maintaining Actively Mode-Locked Fiber Ring Laser2000In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 12, p. 1150-Article in journal (Refereed)
  • 17.
    Li, J
    et al.
    RISE, Swedish ICT, Acreo.
    Myren, N
    Margulis, W
    RISE, Swedish ICT, Acreo.
    Ortega, B
    Puerto, G
    Pastor, D
    Capmany, J
    Belmonte, M
    Pruneri, V
    Systems measurements of 2x2 poled fiber switch2005In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 17, no 12, p. 2571-73Article in journal (Refereed)
  • 18.
    Li, J
    et al.
    RISE, Swedish ICT, Acreo.
    Olsson, B-E
    Karlsson, M
    Andrekson, P A
    OTDM Demultiplexer Based on XPM-Induced Wavelength Shifting in Highly Nonlinear Fiber2003In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 15, no 12, p. 1770-72Article in journal (Refereed)
  • 19.
    Li, J
    et al.
    RISE, Swedish ICT, Acreo.
    Westlund, M
    Sunnerud, H
    Olsson, B-E
    Karlsson, M
    Andrekson, P A
    0.5 Tbit/s eye-diagram measurement by optical sampling using XPM-induced wavelength shifting in highly nonlinear fiber2004In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 16, no 2, p. 566-68Article in journal (Refereed)
  • 20. Malmström, M.
    et al.
    Tarasenko, Oleksander
    RISE, Swedish ICT, Acreo.
    Margulis, W.
    Laurell, F.
    All-Fiber Nanosecond Gating for Time-Resolved Spectral Analysis2016In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 28, no 8, p. 829-832, article id 7381625Article in journal (Refereed)
    Abstract [en]

    We demonstrate the addition of time gating to a standard optical spectrum analyzer (OSA) operating in the spectral region ∼ 1.06 μm. This is accomplished by opening for 7 ns the optical input to the OSA with an electrically driven poled fiber in a Sagnac loop. The sequential interrogation with nanosecond resolution of the reflection from three fiber Bragg gratings along a piece of fiber allows distinguishing the spectral peaks created with a minimum separation of 85 cm. The passive extinction ratio of this device is >40 dB and returns to >40 dB from >23 dB on a 35-ns time scale directly after time gating.

  • 21.
    Marinins, Aleksandrs
    et al.
    KTH Royal Institute of Technology, Sweden.
    Ozolins, Oskars
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Pang, Xiaodan
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Udalcovs, Aleksejs
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Navarro, Jaime Rodrigo
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Kakkar, Aditya
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Schatz, Richard
    KTH Royal Institute of Technology, Sweden.
    Jacobsen, Gunnar
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Popov, Sergei
    KTH Royal Institute of Technology, Sweden.
    Thermal reflow engineered cylindrical polymer waveguides for optical interconnects2018In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174Article in journal (Refereed)
    Abstract [en]

    Integrated polymer photonics brings low cost and high fabrication flexibility to optoelectronic industry. However, this platform needs to overcome several issues to be effective enough for practical applications. In this work, we experimentally demonstrate a decrease of propagation losses and polarization sensitivity of polymer waveguide-based devices as a result of thermal treatment. Heating of poly(methyl methacrylate) strip optical waveguides above the glass transition temperature initiates a waveguide surface reflow due to a decrease of the polymer viscosity and surface tension energy. This results in a decrease of surface roughness and shape change from rectangular to cylindrical. Thus, scattering losses and polarization sensitivity are minimized. IEEE

  • 22. Mora, J
    et al.
    Diez, A
    Andres, M V
    Fonjallaz, P-Y
    Popov, M
    RISE, Swedish ICT, Acreo.
    Tunable dispersion-compensator based on a fiber Bragg grating written in a tapered fiber2004In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 16, no 12, p. 2631-33Article in journal (Refereed)
  • 23. Myren, N
    et al.
    Margulis, W
    RISE, Swedish ICT, Acreo.
    All-fiber Electrooptical Mode-locking Tuning2005In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 17, no 10, p. 2047-49Article in journal (Refereed)
  • 24.
    Mårtensson, J
    et al.
    RISE, Swedish ICT, Acreo.
    Berntson, A
    RISE, Swedish ICT, Acreo.
    Dispersion-managed solitons for 160 Gb/s data transmission2001In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 13, p. 666-68Article in journal (Refereed)
  • 25. Mårtensson, J
    et al.
    Olsson, BE
    Djupsjöbacka, A
    RISE, Swedish ICT, Acreo.
    Alping, A
    RF-assisted DP-16-QAM 112 Gbit/s Transmission over 824 km of G.652 Fiber with without Inline Dispersion Compensation2012In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 24, no 2, p. 140-2Article in journal (Refereed)
  • 26.
    Navarro, J. Rodrigo
    et al.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Pang, X.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Kakkar, A.
    Ozolins, O.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Schatz, R.
    Jacobsen, G.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Popov, S.
    Adaptive Boundaries Scheme for Cycle-Slip Mitigation in C-mQAM Coherent Systems2015In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 20, p. 2154-2157Article in journal (Refereed)
    Abstract [en]

    We propose a method for cycle-slip mitigation in circular multilevel quadrature amplitude modulation (C-mQAM) coherent optical systems, with constellation rotational asymmetry, based on an adaptive boundaries approach. The impact of cycle-slips in C-mQAM coming from Viterbi-Viterbi algorithm limits the phase noise tolerance. By introducing adaptive boundaries and a differential coding scheme, the ambiguity of asymmetrical rotation of constellation can be effectively removed. Performance of the proposed method is evaluated for a C-16QAM and C-64QAM for various laser linewidths. Results show a noticeable improvement in linewidth symbol duration product (?? ᅵ TS) tolerance compared with the previous studies on C-mQAM and mQAM constellations. The ?? ᅵ TS tolerance reaches 4 ᅵ 10-4 and 1.1 ᅵ 10-4 for C-16QAM and C-64QAM, respectively, for 1 dB penalty at a symbol error rate of 10-3.

  • 27. Olsson, BE
    et al.
    Larsson, C
    Mårtensson, J
    RISE, Swedish ICT, Acreo.
    Alping, A
    Alexandersson, R
    Di Muro, R
    WDM Transmission of 112 Gbit/s RF-Assisted DP-16QAM Over 1200 km ULL Fiber2013In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 25, no 1, p. 29-32Article in journal (Refereed)
  • 28. Olsson, B-E
    et al.
    Mårtensson, J
    RISE, Swedish ICT, Acreo.
    Alping, A
    Djupsjöbacka, A
    RISE, Swedish ICT, Acreo.
    Rhodin, A
    112 Gbit/s RF-Assisted Multicarrier DP-16-QAM Optical Transmission over Field Deployed Fiber Link2011In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 23, no 19, p. 1367-9Article in journal (Refereed)
  • 29.
    Pang, Xiodang
    et al.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Ozolins, Oscars
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Gaiarin, Simone
    Technical University of Denmark, Denmark.
    Kakkar, Aditya
    KTH Royal Institute of Technology, Sweden.
    Rodrigo Navarro, Jaime
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Iglesias Olmedo, Miguel
    KTH Royal Institute of Technology, Sweden.
    Schatz, Ricard
    KTH Royal Institute of Technology, Sweden.
    Udalcovs, Aleksejs
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Westergren, Urban
    KTH Royal Institute of Technology, Sweden.
    Zibar, Darko
    Technical University of Denmark, Denmark.
    Popov, Sergei
    KTH Royal Institute of Technology, Sweden.
    Jacobsen, Gunnar
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Experimental Study of 1.55-μ m EML-Based Optical IM/DD PAM-4/8 Short Reach Systems2017In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 29, no 6, p. 523-526, article id 7839925Article in journal (Refereed)
    Abstract [en]

    We experimentally evaluate high-speed intensity modulation/direct detection (IM/DD) transmissions with a 1.55-μ text broadband electro-Absorption modulated laser and pulse amplitude modulations (PAM). We demonstrate 80 Gb/s/ λ PAM-4 and 96 Gb/s/ λ PAM-8 transmissions with low-complexity digital equalizers at the receiver. Performance comparison with different types of equalizers are performed, including linear symbol-spaced feed-forward equalizer (FFE), fractional (half-symbol) spaced FFE and decision feedback equalizer (DFE), with different tap number. It is found that for both cases, a 6-Tap symbol-spaced FFE is sufficient to achieve a stable performance with bit-error-rate below the 7% overhead hard decision forward error correction (7%-OH HD-FEC) threshold over a 4 km standard single mode fiber link. Practical considerations including comparison between adaptive and static equalizer implementation and tolerable fiber chromatic dispersion are discussed.

  • 30.
    Popov, M
    et al.
    RISE, Swedish ICT, Acreo.
    Fonjallaz, P-Y
    Gunnarsson, O
    Compact microwave photonic transversal filter with 40-dB sidelobe suppression2005In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 17, no 3, p. 663-65Article in journal (Refereed)
  • 31.
    Popov, M
    et al.
    RISE, Swedish ICT, Acreo.
    Martinez, A
    Capmany, J
    Pastor, D
    Fonjallaz, P-Y
    Ortega, B
    Fiber Bragg grating-based device for payload label separation in highly-packed subcarrier-multiplexed optical label swapping2005In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 17, no 11, p. 2445-47Article in journal (Refereed)
  • 32.
    Quintana, C.
    et al.
    University of Oxford, U.K..
    Wang, Q.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Jakonis, D.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Piao, X.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Erry, G.
    Airbus Group Innovations, UK..
    Platt, D.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Thueux, Y.
    Airbus Group Innovations, UK..
    Gomez, A.
    University of Oxford, UK.
    Faulkner, G.
    University of Oxford, Oxford, U.K..
    Chun, H.
    University of Oxford, UK..
    Salter, M.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    O'Brien, D.
    University of Oxford, UK.
    High Speed Electro-Absorption Modulator for Long Range Retroreflective Free Space Optics2017In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 29, no 9, p. 707-710Article in journal (Refereed)
    Abstract [en]

    In this letter, we present the design and implementation of a pixelated electro-absorption modulator-based modulating retroreflector (MRR) for high-speed optical wireless communications. The modulator is based on a multiple quantum well structure embedded in an asymmetric Fabry-Perot cavity. This MRR was used in an outdoor link, operating at 150 Mb/s with a bit error rate (BER) of 1.22 × 10-6 at a range of 200 m. The system was also tested in laboratory-controlled conditions achieving a data rate of 200 Mb/s with a BER of 2 × 10-4. To the best of our knowledge, this is the fastest retroreflective free-space optics demonstration in both the indoor and outdoor environments.

  • 33.
    Rodrigo Navarro, J
    et al.
    RISE, Swedish ICT, Acreo.
    Pang, X
    RISE, Swedish ICT, Acreo.
    Kakkar, K
    Ozolins, O
    RISE, Swedish ICT, Acreo.
    Schatz R, Jacobsen G
    RISE, Swedish ICT, Acreo.
    Popov, S
    Adaptive Boundaries Scheme for Cycle-Slip Mitigation in C-mQAM Coherent Systems2015In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 20, p. 2154-Article in journal (Refereed)
  • 34. Rugeland, P
    et al.
    Sterner, C
    RISE, Swedish ICT, Acreo.
    Margulis, W
    RISE, Swedish ICT, Acreo.
    Monolithic Interferometers Using Gemini Fiber2011In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 23, no 14, p. 1001-Article in journal (Refereed)
  • 35. Sudirman, A
    et al.
    Margulis, W
    RISE, Swedish ICT, Acreo.
    All-fiber optofluidic component to combine light fluid2014In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 26, no 10, p. 1031-3Article in journal (Refereed)
  • 36. Sunnerud, H
    et al.
    Li, J
    RISE, Swedish ICT, Acreo.
    Andrekson, P A
    Experimental Quantification of Soliton Robustness to Polarization-Mode Dispersion in Dispersion-Managed Systems2001In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 13, p. 118-120Article in journal (Refereed)
  • 37.
    Tarasenko, O
    et al.
    RISE, Swedish ICT, Acreo.
    Margulis, Walter
    RISE, Swedish ICT, Acreo.
    The Effect of the Electrode Curvature on the Field in Internal Electrode Fibers2015In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 20, p. 2131-2133Article in journal (Refereed)
    Abstract [en]

    By solving the two-dimensional Poisson equation for fibers with circular internal electrodes, we show that the parallelplate approximation incurs significant error in the determination of the electric field applied to the fiber core. This also affects the value of χ(3) measured in electro-optical fibers. The exact solution of Poisson's equation is used to solve the field applied to the core of a photonic crystal fiber, where the many holes screen the field. A universal curve is derived to allow using the simplifying parallel plate approximation and correcting for the error in symmetric fibers with round holes.

  • 38. Westlund, M
    et al.
    Sunnerud, H
    Li, J
    RISE, Swedish ICT, Acreo.
    Hansryd, J
    Karlsson, M
    Andrekson, P A
    Measurement of ultra-low Gordon-Haus timing jitter in dispersion-managed soliton systems2002In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 14Article in journal (Refereed)
  • 39.
    Yu, Z
    et al.
    RISE, Swedish ICT, Acreo.
    Djupsjöbacka, A
    RISE, Swedish ICT, Acreo.
    Popov, M
    RISE, Swedish ICT, Acreo.
    Fonjallaz, P-Y
    Direct Detection of Direct Optically Filtered Millimeter-Wave Signals2007In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 19, no 4, p. 233-35Article in journal (Refereed)
  • 40. Åhman, F
    et al.
    Tromborg, B
    Mörk, J
    Aurelius, A
    Djupsjöbacka, A
    RISE, Swedish ICT, Acreo.
    Berntson, A
    RISE, Swedish ICT, Acreo.
    Measurements Simulation of nonlinear Noise in an SOA2005In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 17, no 1, p. 16-18Article in journal (Refereed)
1 - 40 of 40
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