Reducing electrical crosstalk in laser-diode array modules by using a film-carrier interconnection

Hayashi, Tsuyoshi; Usui, Mitsuo; Hosoya, Masahiro; Satô, Kenji; Sekine, S.

doi:10.1109/50.464739

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…Reducing the electrical crosstalk is very important for DFB-MLAs and many methods have been investigated. According to [34] and [35], the electrical crosstalk can be improved by employing the film-carrier interconnection technique. Furthermore, the electrical crosstalk can be significantly reduced, if the DFB-MLAs are cleaved one by one and then packaged by hybrid integration method.…”

Section: Discussion Of Electrical Cross-talkmentioning

confidence: 99%

Study on Two-Section DFB Lasers and Laser Arrays Based on the Reconstruction Equivalent Chirp Technique and Their Application in Radio-Over-Fiber Systems

Zhang

Zheng

Shi

et al. 2015

IEEE J. Select. Topics Quantum Electron.

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Two-section distributed feedback (TS-DFB) semiconductor lasers based on the reconstruction equivalent chirp technique is proposed. A four-channel TS-DFB laser array (TS-DFB-LA) is theoretically studied and experimentally demonstrated.Compared with the conventional one-section DFB lasers, the proposed TS-DFB lasers have much higher output efficiency and higher side-mode suppression ratio (SMSR) when both the facets of the laser cavity are coated with antireflection coatings. About 39% increase in output efficiency, more than 10 mA decrease in threshold current, and about 5 dB increase in SMSR have been achieved experimentally. Furthermore, experimental results show that the wavelength spacing accuracy of the four-channel TS-DFB-LA can be improved by tuning the injection current of one of the two sections. Using the two-section structure, the dynamic characteristics including small-signal frequency response, relative intensity noise, and spurious-free dynamic range are also improved significantly. A radio-over-fiber link utilizing the TS-DFB laser as directly modulated light source was experimentally achieved. About 50 MSymbol/s 64-QAM signal with 10 GHz carrier was transmitted from the TS-DFB laser. After 40 km transmission in single-mode fiber, the average error vector magnitude of the whole link is 2.97%.Index Terms-Distributed feedback (DFB) lasers, laser arrays, reconstruction equivalent chirp (REC) technique, radio over fiber (ROF), side mode suppression ratio (SMSR), two-section DFB (TS-DFB) laser.

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Section: Discussion Of Electrical Cross-talkmentioning

confidence: 99%

Study on Two-Section DFB Lasers and Laser Arrays Based on the Reconstruction Equivalent Chirp Technique and Their Application in Radio-Over-Fiber Systems

Zhang

Zheng

Shi

et al. 2015

IEEE J. Select. Topics Quantum Electron.

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“…The electric crosstalk in WLAs has been investigated. [63][64][65][66] The solutions include reducing the intra-chip crosstalk and minimizing the crosstalk occurring between WLAs and electrical peripherals. The former can be achieved by electric isolation with deep trenches and=or proton implantation between lasers as well as the use of larger device separation.…”

Section: Thermal and Electric Crosstalksmentioning

confidence: 99%

Wavelength division multiplexing laser arrays for applications in optical networking and sensing: Overview and perspectives

Lee

Pukhrambam

2018

Jpn. J. Appl. Phys.

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Wavelength division multiplexing (WDM) laser arrays (WLAs) can provide compact light sources for optical telecommunications, interconnections, switching, and optical sensing applications. The technologies to realize WLAs are reviewed and discussed with focus on wavelength registration and manufacturing complexity. WLAs can be realized in monolithic or hybrid integration approaches. The issues and challenges for applying monolithic or hybrid integration to realize WLAs will be discussed. The laser arrays based on hybrid laser structure and the silicon photonics foundry fabrication model will be highlighted.

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“…The multichannel WDM transmitter is based on an integrated WDM laser array and combiner [29] with laser array drivers [30]. We packaged the transmitter using a technique that minimizes electronic crosstalk when all ten lasers are simultaneously modulated [31].…”

Section: ) Wdm Array Transmitter With Scmmentioning

confidence: 99%

MOSAIC: a multiwavelength optical subcarrier multiplexed controlled network

Gaudino

Len²,

Desa³

et al. 1998

IEEE J. Select. Areas Commun.

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The experimental demonstration of MOSAIC, a reconfigurable WDM add/drop network with subcarrier multiplexed control, is presented. The MOSAIC network implements the optical layer protocol to support bit-rate transparent multichannel lightpaths. Two types of add/drop multiplexers are implemented and combined in a three-node experiment. Multihop lightpaths are established giving an end-to-end bit error rate of better than 10 0 0 09 at 1.2 Gbps. The reconfigurable add/drop multiplexer is based on a novel dilated 2 2 2 2 2 acoustooptic filter switch crossconnect and an analog optoelectronic crossconnect that drives a ten-wavelength laser array transmitter up to 2.5 Gbps per wavelength. The fixed wavelength add/drop multiplexer utilizes a fast digitally tunable laser transmitter. Both add/drop multiplexers support bit-rate transparent 2R optoelectronic regeneration as well as wavelength translation. Subcarrier multiplexing on each wavelength is used to support channel state monitoring and channel equalization as well as transmission of digital network control information. Systems experiments demonstrate cascaded 2R optoelectronic regeneration with wavelength translation and cascaded multichannel optical switching with up to seven hops. It is shown that combining cascaded 2R optoelectronic regeneration with cascaded multichannnel optical switching can be used to balance jitter accumulation and amplified spontaneous emission generated amplitude noise to yield high signal-to-noise ratio for lightpaths. Index Terms-Optical add/drop multiplexers, optical networks, optical subcarrier multiplexing, optical transport networks, reconfigurable add/drop multiplexers, transparent optical networks, wavelength division multiplexing. I. INTRODUCTION R ECONFIGURABLE wavelength division multiplexed (WDM) add/drop fiber transport networks have the potential to satisfy the demands of future broadband communications applications [1]. Reconfigurability in the add/drop multiplexers will result in increased network configuration flexibility, remote provisioning, and protection switching capabilities.

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Reducing electrical crosstalk in laser-diode array modules by using a film-carrier interconnection

Cited by 6 publications

References 23 publications

Study on Two-Section DFB Lasers and Laser Arrays Based on the Reconstruction Equivalent Chirp Technique and Their Application in Radio-Over-Fiber Systems

Study on Two-Section DFB Lasers and Laser Arrays Based on the Reconstruction Equivalent Chirp Technique and Their Application in Radio-Over-Fiber Systems

Wavelength division multiplexing laser arrays for applications in optical networking and sensing: Overview and perspectives

MOSAIC: a multiwavelength optical subcarrier multiplexed controlled network

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