Title :
Reduction of Fresnel Back-Reflection at Splice Interface Between Hollow Core PCF and Single-Mode Fiber
Author :
Couny, F. ; Benabid, F. ; Light, P.S.
Author_Institution :
Univ. of Bath, Bath
fDate :
7/1/2007 12:00:00 AM
Abstract :
Optical feedback from the Fresnel reflection at the air-silica interface of a splice between a hollow core photonic crystal fiber (HC-PCF) and a conventional fiber can cause laser instability or damage. The reported solution consists of the preparation of angle cleaved fibers, spliced together using a filament fusion splicer. A reduction of 44 dB of the return loss is observed. The method will considerably reduce potential damage such as fiber fusion in case of a fiber laser. The method is also demonstrated to decrease the Fabry-Perot effect in setups such as saturable absorption when the spliced HC-PCF is used as a gas cell device.
Keywords :
light reflection; optical feedback; optical fibre fabrication; optical fibre losses; optical saturable absorption; photonic crystals; splicing; Fabry-Perot effect; Fresnel backreflection; Fresnel reflection; air-silica interface; angle cleaved fibers; fiber fusion; fiber laser; gas cell device; hollow core photonic crystal fiber; optical feedback; return loss; saturable absorption; single-mode fiber; splice interface; Fabry-Perot; Fiber lasers; Fresnel reflection; Gas lasers; Laser feedback; Laser fusion; Optical feedback; Optical fiber devices; Optical losses; Photonic crystal fibers; Angle cleave; Fresnel reflection; hollow core photonic crystal fiber (HC-PCF); splicing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.898770
