Broadband injection-locked homodyne receiver for digital coherent transmission using a low Q Fabry-Perot LD-Reference-Cited by-同舟云学术

Broadband injection-locked homodyne receiver for digital coherent transmission using a low Q Fabry-Perot LD

Published:2022-04-05 Issue:8 Volume:30 Page:13345
ISSN:1094-4087
Container-title:Optics Express
language:en
Short-container-title:Opt. Express

Author:

Kasai Keisuke¹^ORCID,Kan Takashi¹^ORCID,Yoshida Masato¹,Hirooka Toshihiko¹,Nakazawa Masataka¹

Affiliation:

1. Tohoku University

Abstract

We describe the broadband injection-locking performance of a Fabry-Perot laser diode (FP-LD) for digital coherent transmission. The dynamic locking bandwidth of the FP-LD was as wide as 28.8 GHz, which makes it possible to achieve precise carrier-phase synchronization with extremely low phase noise over a wide frequency range. By applying the FP-LD as an LO in an injection-locked homodyne receiver for digital coherent quadrature amplitude modulation (QAM) transmission, we demonstrate, for the first time, the precise demodulation of 3, 10 and 20 Gbaud 256 QAM signals even when using a widely and randomly phase-modulated transmitter laser. This is attributed to the excellent wideband dynamic injection-locking characteristics of the FP-LD.

Funder

National Institute of Information and Communications Technology

Ministry of Internal Affairs and Communications

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

Reference16 articles.

1. Homodyne OFDM with Optical Injection Locking for Carrier Recovery

2. Inter-channel nonlinear phase noise compensation using optical injection locking

3. 80 Gbit/s, 256 QAM coherent transmission over 150 km with an injection-locked homodyne receiver

4. 10 Channel WDM 80 Gbit/s/ch, 256 QAM Bi-Directional Coherent Transmission for a High Capacity Next-Generation Mobile Fronthaul

5. High-performance phase locking of wide linewidth semiconductor lasers by combined use of optical injection locking and optical phase-lock loop

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