Continuously tunable single-mode erbium fiber laser

Abstract

A single-mode linear-cavity fiber laser that utilizes intracore Bragg reflectors for cavity feedback has been continuously tuned, without mode hopping, when both the gratings and enclosed fiber are stretched uniformly. Continuous tuning is achieved in a 1.54-microm erbium fiber laser since the change in the reflected wavelength from a Bragg reflector tracks the change in the cavity resonance wavelength.

Nd-doped phosphate glass microstructured optical fiber laser

“…Since the first introduction [1,2], high perfor mance single frequency fiber oscillator and laser [3][4][5][6][7][8][9][10] have attracted considerable attention in the past few years. Good beam quality, robustness and suffi cient output are important characteristics for these laser systems.…”

“…Although phosphate glass fiber suffers from higher loss than silica fiber, there is the substantial prospect for phosphate glass fiber application in compact high power single fre quency laser. Microstructured optical fiber (MOF), also known as photonic crystal fiber (PCF) [14], has created new applications in a large number of diverse areas of research and technology, such as ultra flat 1 The article is published in the original. supercontinuum generation [15], linearly polarized short length fiber lasers [16] and versatile optical device [17,18].…”

Gas Sensor Design Based on a Line Locked Tunable Fiber Laser and the Dual Path Correlation Spectroscopy Method

“…Another light source option for LL-TLAS sensing in the near infrared (NIR) region are fiber lasers, since these can provide narrow line width emissions and are relatively low cost because these can be implemented with standard communication components [4]. These lasers can be used to detect gases such as acetylene (C 2 H 2 ), hydrogen iodide (HI), ammonia (NH 3 ), carbon monoxide (CO) and carbon dioxide (CO 2 ) [11][12][13]. Lasers that will be used in TLAS applications must be able to be continuously tuned over the spectral range where the ro-vibrational absorption lines occur.…”

“…Lasers that will be used in TLAS applications must be able to be continuously tuned over the spectral range where the ro-vibrational absorption lines occur. Hence not all optical fiber lasers can be finely tuned due to the mode hopping effect [10,[12][13][14][15], however some optical fibers with continuous tuning have previously been achieved [13][14][15]. Moreover, some authors have proposed fiber lasers for gas sensing [12,16].…”

Tailoring the Properties of Photonic Nanojets by Changing the Material and Geometry of the Concentrator

“…In general, high refractive index contrast lasers emit power in the range of microwatts to a few milliwatts, while photonic crystal lasers emit power in the range of picowatts to microwatts (in general, photonic crystal band-edge [7] and surface emitting lasers [9] emit significantly more power than single-defect lasers) and plasmonic lasers emit nanowatts optical power. If higher power is needed, bulk or fiber lasers [14,15] needs to be used to drive optical devices.…”