Patent ID: 7747174
Filing Date: 2010-06-29
Classification: H04B,H04J

Abstract:
1. An optical transmitter, comprising: a Fabry-Perot (FP) laser operable to generate multimode laser light; an optical isolator arranged to transmit the multimode laser light; an optical splitter having more than one optical output and an optical input arranged to receive the multimode laser light transmitted by the optical isolator; and electroabsorption modulators (EAMs) each operable to modulate a respective laser light output from a respective optical output of the optical splitter, wherein the multimode laser light has a power spectrum characterized by a root-mean-square linewidth of at most 3 nm and wherein the FP laser has a wavelength temperature coefficient, and each of the EAMs has an absorption edge temperature coefficient equal to the wavelength temperature coefficient within +/−25% over an operating temperature range specified for the optical transmitter.