Title :
A combined tunable optical filter and tunable MQW ring laser
Author :
Blyth, K.J. ; Hill, A.M.
Author_Institution :
BT Labs., Ipswich, UK
fDate :
3/1/1992 12:00:00 AM
Abstract :
A dual-purpose, grating-based tunable optical filter/ring laser is described for accurate wavelength selection and generation at customer terminals. The device selects a single-wavelength channel from a HDWDM multiplex with 1 nm channel spacing, and simultaneously generates an identical wavelength as part of a tunable ring laser. The device is tunable over a 125 nm wavelength range, centered in the 1.5 mu m low-loss fiber window.<>
Keywords :
diffraction gratings; frequency division multiplexing; laser tuning; multiplexing equipment; optical communication equipment; optical filters; ring lasers; semiconductor junction lasers; 1.5 micron; HDWDM multiplex; accurate wavelength selection; channel spacing; customer terminals; diode lasers; grating-based; low-loss fiber window; single-wavelength channel; tunable MQW ring laser; tunable optical filter; wavelength generation; Erbium-doped fiber lasers; Laser theory; Laser tuning; Optical fiber devices; Optical fiber filters; Optical filters; Quantum well devices; Quantum well lasers; Ring lasers; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
