Title :
Optical spectrum analyzer based on arrayed waveguide grating for high-speed optical communication systems
Author :
Tanaka, Y. ; Itoh, Y. ; Aizawa, K. ; Kurokawa, T. ; Tsuda, H.
Author_Institution :
Tokyo Univ. of Agric. & Technol., Japan
Abstract :
An optical spectrum analyzer for high-speed optical communication systems was developed using a specially fabricated arrayed waveguide grating with a curved surface micromirror output and a linear image sensor. The resolution and dynamic range were investigated theoretically and experimentally, considering the magnification of the imaging system and the characteristics of the image sensor. A spectrum of continuous-wave light from 1543.0 to 1573 nm was successfully observed. Spectra of 8-ps short optical pulses from a mode-locked laser diode operating at 1.5 μm were also successfully observed with a maximum resolution of 15 GHz for 15-fold magnification.
Keywords :
arrayed waveguide gratings; image sensors; infrared spectra; laser mode locking; micromirrors; optical communication equipment; optical fibre communication; semiconductor lasers; 1.5 mum; 1543 to 1573 nm; 8 ps; arrayed waveguiding grating; high-speed optical communication system; image sensor; micromirror; mode-locked laser diode; optical spectrum analyzer; Arrayed waveguide gratings; High speed optical techniques; Image sensors; Optical arrays; Optical fiber communication; Optical sensors; Optical waveguide theory; Optical waveguides; Sensor arrays; Spectral analysis; Optical fiber communication; optical pulses; optical waveguide components; waveguide arrays; wavelength measurement; wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.840273
