{"title":"GaSb-based widely tunable V-coupled-cavity laser with 255 nm wavelength tuning near 2 µm.","authors":"Zihan Wei, Jingli Gong, Zhanyi Wang, Yihang Chen, Cheng-Ao Yang, Zhichuan Niu, Jian-Jun He","doi":"10.1364/OL.563165","DOIUrl":null,"url":null,"abstract":"<p><p>This paper reports a GaSb quantum-well-based widely tunable V-coupled-cavity laser (VCCL) targeting the 1.7-2.0 µm spectral range, which is significant for gas detection and biomedical applications. The VCCL employs a half-wave coupler for single-mode selection without a grating structure, enabling a wide range of wavelength tuning by current and temperature adjustments. The laser exhibits a record tuning range of 255 nm from 80 K (-193.15°C) to 330 K (56.8°C) with a high side-mode suppression ratio (SMSR) and delivers several milliwatts of output power. It is also compatible with packaging into transmitter optical sub-assemblies (TOSA) for augmented performance. This technology advancement in a tunable mid-infrared laser has significant potential for various spectroscopic applications.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 12","pages":"4118-4121"},"PeriodicalIF":3.1000,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.563165","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
This paper reports a GaSb quantum-well-based widely tunable V-coupled-cavity laser (VCCL) targeting the 1.7-2.0 µm spectral range, which is significant for gas detection and biomedical applications. The VCCL employs a half-wave coupler for single-mode selection without a grating structure, enabling a wide range of wavelength tuning by current and temperature adjustments. The laser exhibits a record tuning range of 255 nm from 80 K (-193.15°C) to 330 K (56.8°C) with a high side-mode suppression ratio (SMSR) and delivers several milliwatts of output power. It is also compatible with packaging into transmitter optical sub-assemblies (TOSA) for augmented performance. This technology advancement in a tunable mid-infrared laser has significant potential for various spectroscopic applications.
期刊介绍:
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.