Title :
Wavelength Conversion of Incoherent Broadband Sources by Intracavity Difference Frequency Mixing
Author :
Torregrosa, A.J. ; Maestre, H. ; Capmany, J.
Author_Institution :
Dept. of Commun. Eng., Miguel Hernandez Univ., Elche, Spain
Abstract :
We demonstrate a broadband wavelength converting system for incoherent amplified spontaneous emission (ASE) sources. It is based on single-pass difference frequency generation using a periodically poled stoichiometric lithium tantalate crystal placed inside the cavity of a tuneable self-injection-locked diode-pumped Cr3+:LiCAF laser. A spectral bandwidth of ~ 30 nm around 1550 nm is converted within a tuneable shift of ~ 12 nm. The technique we propose does not only provide ASE sources in new spectral allocations but it also opens up a way to perform spectral shaping.
Keywords :
aluminium compounds; calcium compounds; chromium; laser cavity resonators; laser tuning; lithium compounds; multiwave mixing; optical pulse shaping; optical wavelength conversion; semiconductor lasers; solid lasers; superradiance; ASE sources; LiCaAlF6:Cr; broadband wavelength converting system; incoherent amplified spontaneous emission; incoherent broadband sources; intracavity difference frequency mixing; periodically poled stoichiometric lithium tantalate crystal; single-pass difference frequency generation; spectral allocations; spectral shaping; tuneable self-injection-locked diode-pumped laser; wavelength conversion; Broadband communication; Cavity resonators; Crystals; Frequency conversion; Laser beams; Laser excitation; Optical wavelength conversion; Nonlinear optics; QPM; broadband wavelength conversion; difference frequency generation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2302801
