Title :
Integrated optical spectrum analyzer with internal gain
Author :
Suche, H. ; Hiller, D. ; Baumann, I. ; Sohler, W.
Author_Institution :
Angewandte Physik, Univ. Gesamthochschule Paderborn, Germany
fDate :
5/1/1995 12:00:00 AM
Abstract :
The first scanning integrated optical spectrum analyzer (IOSA) with resolution enhancement due to intracavity loss compensation in an amplifying Ti:Er:LiNbO/sub 3/-waveguide is reported. The active IOSA of about 1.423 GHz free spectral range has been diode-pumped at /spl lambda//sub p/=1479 nm (E/sub p//spl par/c) slightly below the lasing threshold at 1531 nm (P/sub p,th//spl cong/40 mW). Linear scanning of the cavity resonances has been achieved by driving the phase modulator (U/sub x//spl cong/10.4 V) with a sawtooth voltage. A finesse up to 205 has been achieved at /spl lambda//sub s//spl cong/1546 nm.<>
Keywords :
compensation; erbium; integrated optics; lithium compounds; optical pumping; optical resolving power; optical scanners; phase modulation; spectral analysers; titanium; 10.4 V; 1479 nm; 1531 nm; 1546 nm; 40 mW; LiNbO/sub 3/:Ti,Er; amplifying Ti:Er:LiNbO/sub 3/-waveguide; cavity resonances; diode-pumped; integrated optical spectrum analyzer; internal gain; intracavity loss compensation; lasing threshold; linear scanning; phase modulator driving; resolution enhancement; scanning integrated optical spectrum analyzer; spectral range; Dielectric substrates; Diodes; Integrated optics; Mirrors; Optical modulation; Optical surface waves; Optical waveguides; Reflectivity; Spectral analysis; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
