High-Speed Miniaturized Photodiode and Parallel-Fed Traveling-Wave Photodetectors Based on InP

Beling, Andreas; Bach, H.-G.; Mekonnen, G.G.; Kunkel, R.; Schmidt, D.

doi:10.1109/jstqe.2006.885331

Cited by 39 publications

(8 citation statements)

References 21 publications

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“…In certain designs, a maximum 3-dB bandwidth of up to 100-145 GHz has been reported for InGaAsP-clad/InGaAs-core waveguide PIN structures with a bias voltage supply [19][20][21]. In contrast, photo-exited carriers (electrons in an absorption layer) can be generated in a UTC structure that has two separate layer structures (a p-doped photo-absorption layer and a carrier collector layer).…”

Section: Design Of Zero-bias Operational Utc-pdmentioning

confidence: 99%

Bias-Free Operational UTC-PD above 110 GHz and Its Application to High Baud Rate Fixed-Fiber Communication and W-Band Photonic Wireless Communication

Umezawa

Kanno

Kashima

et al. 2016

J. Lightwave Technol.

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We present the design of a bias-free uni-travelling-carrier photodiode (UTC-PD) that is operational above 110 GHz, and its application to 100-Gbaud fixed-fiber communication and 109-GHz carrier-photonic wireless communication, for advanced optical networks. The design and analysis for bias-free operation were explained in detail using the carrier concentration in the photo-absorption layer and carrier collector layer. In the experimental results, the developed UTC-PD with back-illuminated structure exhibited a wide 3-dB bandwidth of over 110 GHz at 0 V. For fixed-fiber communications, a high-baud-rate photoreceiver based on the UTC-PD was fabricated. Eye diagrams showed clear openings at up to 107 Gbaud and high photo-currents of 3-7 mA at 100 GHz signal light were observed at zero-bias. Assuming photonic wireless communication using photonic power supply through optical fiber, the developed UTC-PD contributed to reducing bias feeds to the photoreceiver module. Additionally, low power consumption was achieved when using the newly developed 110 GHz InP-PHEMT amplifier with the UTC-PD.Index Terms-Bias free, UTC-PD, high baud rate optical fiber communications, high carrier frequency photonic wireless communication, low power consumption, high gain

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Section: Design Of Zero-bias Operational Utc-pdmentioning

confidence: 99%

Bias-Free Operational UTC-PD above 110 GHz and Its Application to High Baud Rate Fixed-Fiber Communication and W-Band Photonic Wireless Communication

Umezawa

Kanno

Kashima

et al. 2016

J. Lightwave Technol.

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“…It is then logical to overcome that issue with the design of an edge illuminated waveguide design [16] that is then compatible with travelling wave design techniques that could enhance the roll-off beyond the 3dB bandwidth of a lumped element as discussed in Section 7.3.1. However, for such devices a true travelling wave structure is not achieved as velocity matching could only happen with practical PD in periodical structures [17]. However, designs approaching velocity matching are possible and will give roll-off significantly better than the normal 40 dB per decade.…”

Section: Tw-utc-pds As Thz Emittersmentioning

confidence: 99%

Uni-travelling carrier photodetectors as THz detectors and emitters

Renaud

Fice

Ponnampalam

et al. 2015

Quantum Sensing and Nanophotonic Devices XII

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The THz part of the spectrum (0.1 to 10 THz) has been gathering increasing interest over the past 10 years as it could enable interesting new applications. Key to its exploitation has been the development of photonic based sources and detectors. However there is a lack of room temperature operating devices for both sources and detectors. We propose the use of uni-travelling carrier photodetectors (UTC-PDs) as both source and detectors for the range up to 2 THz.

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“…One solution is to divide the optical signal between a parallel array of photodiodes and to combine their photocurrents in phase with a transmission line [24]. Beling et al [25] have successfully demonstrated the efficacy of this approach. A 1 x 4 multi-mode interference (MMI) power splitter was employed to distribute the optical signal to four (4 x 7 µm 2 ) evanescently-coupled travelingwave waveguide photodiodes.…”

Section: Microwave Striplinementioning

confidence: 99%