Title :
Frequency response and tunability of grating-assisted directional couplers
Author :
Griffel, Giora ; Yariv, Amnon
Author_Institution :
Dept. of Electr. Eng. & Appl. Phys., California Inst. of Technol., Pasadena, CA, USA
fDate :
5/1/1991 12:00:00 AM
Abstract :
The spectral properties of grating-assisted directional couplers are studied using an improved coupled mode formulation. Key parameters for the design of these structures, such as the grating period, the coupling length, and other structural parameters, are calculated. The frequency response, the filter bandwidth, and the tuning range are analyzed. The technique is used to examine a specific case of InGaAsP-InP tunable filters, and the results are compared to a prior experiment
Keywords :
III-V semiconductors; diffraction gratings; directional couplers; gallium arsenide; gallium compounds; indium compounds; integrated optics; optical couplers; III-V semiconductors; InGaAsP-InP tunable filters; coupled mode formulation; coupling length; design; filter bandwidth; frequency response; grating period; grating-assisted directional couplers; spectral properties; tunability; tuning range; Directional couplers; Distributed Bragg reflectors; Filters; Frequency response; Gratings; Laser tuning; Optical propagation; Optical waveguides; Structural engineering; Tunable circuits and devices;
Journal_Title :
Quantum Electronics, IEEE Journal of
