scholarly journals Recent Advances in High Speed Photodetectors for eSWIR/MWIR/LWIR Applications

Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 14
Author(s):  
Baile Chen ◽  
Yaojiang Chen ◽  
Zhuo Deng
Keyword(s):  
Short Wavelength ◽  
High Speed ◽  
State Of The Art ◽  
Response Speed ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Long Wavelength ◽  
Speed Performance ◽  
Response Performance ◽  
Long Wavelength Infrared

High speed photodetectors operating at a telecommunication band (from 1260 to 1625 nm) have been well studied with the development of an optical fiber communication system. Recent innovations of photonic systems have raised new requirements on the bandwidth of photodetectors with cutoff wavelengths from extended short wavelength infrared (eSWIR) to long wavelength infrared (LWIR). However, the frequency response performance of photodetectors in these longer wavelength bands is less studied, and the performances of the current high-speed photodetectors in these bands are still not comparable with those in the telecommunication band. In this paper, technical routes to achieve high response speed performance of photodetectors in the extended short wavelength infrared/mid wavelength infrared/long wavelength infrared (eSWIR/MWIR/LWIR) band are discussed, and the state-of-the-art performances are reviewed.

Novel Manchester-Based Multilevel Signaling for High-Speed Optical Communication Systems

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Festus Idowu Oluwajobi ◽  
Nguyen Dong-Nhat ◽  
Amin Malekmohammadi
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Chromatic Dispersion ◽  
Optical Fiber Communication ◽  
Pulse Amplitude ◽  
Calculation Model ◽  
Fiber Communication ◽  
Receiver Sensitivity ◽  
Communication Links ◽  
Dispersion Tolerance

AbstractIn this paper, the performance of a novel multilevel signaling based on Manchester code namely four-level Manchester Coding (4-MC) technique is investigated for next generation high-speed optical fiber communication links. The performance of 4-MC is studied and compared with conventional Manchester modulation and four-level pulse amplitude modulation (4-PAM) formats in terms of receiver sensitivity, spectral efficiency and dispersion tolerance at the bit rate of 40 Gb/s. The bit error rate (BER) calculation model for the proposed multilevel scheme has also been developed. The calculated receiver sensitivity and the chromatic dispersion tolerance at the BER of 10–9 of the proposed scheme are −22 dBm and 67.5 ps/nm, respectively. It is observed that, 4-MC scheme is superior in comparison to 4-PAM by 3.5 dB in terms of receiver sensitivity in back-to-back scenario. Therefore, the proposed scheme can be considered as an alternative to current 4-PAM system.

High-Speed In-Vehicle Optical Fiber Communication

2019 ◽  
Vol 75 (5) ◽  
pp. P-258-P-261
Author(s):  
OKIHIRO SUGIHARA ◽  
SATOSHI TAKAHASHI
Keyword(s):  
Optical Fiber ◽  
High Speed ◽  
Optical Fiber Communication ◽  
Fiber Communication

Electro Optic Conversion Methods in Intra-Body Communication

2014 ◽  
Vol 513-517 ◽  
pp. 4458-4461
Author(s):  
Jian Li ◽  
Shuang Zhang
Keyword(s):  
Data Transmission ◽  
Communication System ◽  
High Speed ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
External Modulation ◽  
Electro Optic ◽  
High Speed Data ◽  
Data Transmission System ◽  
Modulation Methods

Galvanic coupling method has been observed to be the best method for data transmission in intra-body communication, which is proposed by Zimmerman in 1995. With the increasing transmission requirements and the development of optical fiber communication, a high speed data transmission system is required and it is possible to design an apparatus to realize the electro optic conversion. In this paper, the characteristics of the intra-body communication system are introduced. Principles and structures of the electro-optic modulation methods for intra-body communication are reviewed. Internal and external modulation methods are introduced and discussed. A system of the electro-optic and acousto-optic modulation are recommended for the intra-body communication system and discussed.

ELECTRONICS FOR HIGH SPEED, BURST MODE OPTICAL COMMUNICATIONS

1990 ◽  
Vol 01 (03n04) ◽  
pp. 223-243 ◽  
Author(s):  
R.G. SWARTZ ◽  
Y. OTA
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Data Communication ◽  
Optical Fiber Communication ◽  
Digital Data ◽  
Optical Data ◽  
Data Link ◽  
Fiber Communication ◽  
Burst Mode ◽  
Multiple Channel

Electronics for burst mode data communication over an optical data link will contribute to wider acceptance of photonic technology. This paper describes the concepts and difficulties inherent in burst mode optical communication systems, and proposes a new solution employing an ultra-high speed, high accuracy peak detector. Sensitivity penalties associated with this technique are reviewed. The method was implemented in an optical receiver with dc to 500 Mb/s operation, and at 200 Mb/s, demonstrates an isolated pulse sensitivity of −29.5 dBm, and pulse width distortion less than lns. An example application, the Multiple channel Optical Data LINK (MODLINK), is described: a fully dc-coupled, 12 parallel channel digital data link system designed for high speed optical fiber communication at bit rates ranging from dc to 200 Mb/s per channel, applicable at distances of centimeters to over 3 km.

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