Title :
Design rules for maximally flat wavelength-insensitive optical power dividers using Mach-Zehnder structures
Author :
Little, Brent E. ; Murphy, Tom
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
A cascade of two directional couplers with a relative phase shift between them, serves as an optical power divider. Simple analytic universal design rules for selecting the appropriate net coupling strength in each device, and for the phase shift, yield maximally flat response in terms of deviations in wavelength, polarization, or uniform fabrication errors, and are applicable to any power division ratio.
Keywords :
Mach-Zehnder interferometers; light polarisation; optical design techniques; optical directional couplers; optical fabrication; optical waveguide components; Mach-Zehnder structures; analytic universal design rules; cascade; design rules; directional couplers; maximally flat response; maximally flat wavelength-insensitive optical power dividers; net coupling strength; polarization; power division ratio; relative phase shift; uniform fabrication errors; Directional couplers; Mirrors; Optical design; Optical device fabrication; Optical filters; Optical polarization; Optical sensors; Optical waveguides; Power dividers; Sagnac interferometers;
Journal_Title :
Photonics Technology Letters, IEEE
