A Widely and Continuously Tunable Single-Mode Transmitter Based on a Hybrid Microcavity Laser

A method for achieving the single-mode and efficient unidirectional emission of a whispering gallery mode (WGM) semiconductor laser is presented herein. Hybrid square-rectangular lasers (HSRLs) and hybrid square/rhombus-rectangular lasers (HSRRLs) consisting of a Fabry–Pérot (FP) cavity and a square...

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Bibliographic Details
Published in:Photonics 2024-11, Vol.11 (11), p.1080
Main Authors: Wang, Miao-Qing, Zhang, Bin, Zhang, Zhen-Ning, Hao, You-Zeng, Hu, Zun-Hao, Yang, Yue-De, Xiao, Jin-Long, Teixeira, António L., Huang, Yong-Zhen
Format: Article
Language:English
Subjects:
Approximation
Communication networks
Communications equipment
Efficiency
Fabry-Perot interferometers
Fourier transforms
Lasers
microcavity
Semiconductor lasers
Semiconductors
Symmetry
transmitter optical subassembly
Tunable lasers
Wave division multiplexing
Wavelength
whispering gallery mode
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Description
Summary:A method for achieving the single-mode and efficient unidirectional emission of a whispering gallery mode (WGM) semiconductor laser is presented herein. Hybrid square-rectangular lasers (HSRLs) and hybrid square/rhombus-rectangular lasers (HSRRLs) consisting of a Fabry–Pérot (FP) cavity and a square or rhombus cavity microcavity are described. In addition, a transmitter optical subassembly (TOSA) based on an HSRRL chip was fabricated, which has a wide and continuous wavelength tuning range. Wavelength channels from 1555.75 nm to 1568.15 nm with a spacing of 50 GHz were demonstrated with a good side mode suppression ratio (SMSR) and good output power. These devices have the potential to meet the typical requirements of optical communication networks.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics11111080