Burst-Tolerant Tuning of Reflection-Type Transversal Filter Laser With Single Active Region

We developed a tunable laser based on a reflection-type transversal filter (RTF). The RTF laser is tuned by the electro-optic effect and exhibits low-power, high-speed, and narrow-linewidth switching operation in 35-nm bandwidth. While our previously developed RTF laser has multiple active regions (...

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Published in:IEEE photonics technology letters 2022-01, Vol.34 (1), p.23-26
Main Authors: Saito, Yusuke, Ueda, Yuta, Shindo, Takahiko, Kanazawa, Shigeru, Matsuzaki, Hideaki, Ishikawa, Mitsuteru
Format: Article
Language:English
Subjects:
Active regions (lasers)
Laser tuning
Measurement by laser beam
Optical filters
Optical switches
Quantum cascade lasers
quantum confined Stark effect
reflection-type transversal filter
Semiconductor lasers
Switching
Transversal filters
Tunable laser diode
Waveguide lasers
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cited_by cdi_FETCH-LOGICAL-c291t-8bdbbe0be70f2f59a805af76d85b60ded8d56b1624d72b6374824073c4e564483
cites cdi_FETCH-LOGICAL-c291t-8bdbbe0be70f2f59a805af76d85b60ded8d56b1624d72b6374824073c4e564483
container_end_page 26
container_issue 1
container_start_page 23
container_title IEEE photonics technology letters
container_volume 34
creator Saito, Yusuke
Ueda, Yuta
Shindo, Takahiko
Kanazawa, Shigeru
Matsuzaki, Hideaki
Ishikawa, Mitsuteru
description We developed a tunable laser based on a reflection-type transversal filter (RTF). The RTF laser is tuned by the electro-optic effect and exhibits low-power, high-speed, and narrow-linewidth switching operation in 35-nm bandwidth. While our previously developed RTF laser has multiple active regions (ACTs) that share the laser bandwidth, the newly designed one has a single ACT. Since the slow wavelength switching among ACTs is eliminated, we achieved high-speed eight-channel switching that covers >30-nm bandwidth for switching intervals differing by a factor of 1,000 (12.5 \mu \text{s} and 12.5 ms), which indicates the laser is burst tolerant. Furthermore, practical wavelength switching for 128-Gbps coherent signals was successfully demonstrated.
doi_str_mv 10.1109/LPT.2021.3133010
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source IEEE Electronic Library (IEL) Journals
subjects Active regions (lasers)
Laser tuning
Measurement by laser beam
Optical filters
Optical switches
Quantum cascade lasers
quantum confined Stark effect
reflection-type transversal filter
Semiconductor lasers
Switching
Transversal filters
Tunable laser diode
Waveguide lasers
title Burst-Tolerant Tuning of Reflection-Type Transversal Filter Laser With Single Active Region
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