Broad-range self-sweeping single-frequency Tm-doped fiber laser for sensing applications

A. E. Budarnykh, A. D. Vladimirskaya, I. A. Lobach, S. I. Kablukov

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

The self-sweeping laser is the simplest sort of tunable laser without use of optical elements and electrical drivers for frequency tuning. Owing to broad sweeping range (more than 10 nm) and simplicity, self-sweeping fiber lasers are attractive sources for applications demanding tunable radiation such as sensors interrogation, spectral analysis, optical frequency domain reflectometry and so on. Currently the self-sweeping effect in fiber lasers was observed in different spectral regions covering range from 1 to 2.1 μm. In the paper, linearly-polarized Tm-doped fiber laser with sweeping range of more than 20 nm in the region of 1.92 μm has been experimentally demonstrated. The laser is based on singlemode polarization-maintaining Tm-doped fiber and pumped by home-made Er-doped fiber laser with wavelength of 1540 nm. The cavity is formed by highly-reflective fiber loop mirror and right-angle cleaved fiber end. The main feature of the laser is generation of periodic μs-scale pulses where each of them contains practically only single longitudinal mode radiation with linewidth of ∼1 MHz. The laser frequency is changed from pulse to pulse by one intermode beating frequency of the laser ∼8 MHz. The sweeping rate is increased with pump power up to 10 nm/sec. The average output power exceeds 400 mW. The developed laser source can be used for atmospheric remote sensing as well as for interrogation of the sensors based on fiber Bragg gratings and is applied to measure spectrum of water absorption lines in air.

Язык оригиналаанглийский
Название основной публикацииOptoelectronic Devices and Integration VII
Редакторы Zhang, B Li, C Yu, Zhang
ИздательSPIE
Число страниц7
Том10814
ISBN (электронное издание)9781510622265
DOI
СостояниеОпубликовано - 1 янв 2018
СобытиеOptoelectronic Devices and Integration VII 2018 - Beijing, Китай
Продолжительность: 11 окт 201813 окт 2018

Серия публикаций

НазваниеProceedings of SPIE
ИздательSPIE-INT SOC OPTICAL ENGINEERING
Том10814
ISSN (печатное издание)0277-786X

Конференция

КонференцияOptoelectronic Devices and Integration VII 2018
СтранаКитай
ГородBeijing
Период11.10.201813.10.2018

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