Patent ID: 8145061
Filing Date: 2012-03-27
Classification: H01L,H04B

Abstract:
1. A bi-directional optical module optically communicating with a single optical fiber, comprising: a laser diode for emitting light with a first wavelength to said optical fiber by receiving driving signals complementary to each other, said laser diode being driven in a differential mode; a photodiode for generating a photocurrent by receiving light with a second wavelength different from said first wavelength from said optical fiber; a wavelength selective filter for passing said light with said second wavelength provided from said optical fiber to said photodiode and for reflecting said light with said first wavelength emitted from said laser diode to said optical fiber, said laser diode, said photodiode and said wavelength selective filter being installed on a stem of a package; two lead pins for providing said driving signals to said laser diode; two interconnections for carrying said complementary signals from said two lead pins to said laser diode, wherein said photodiode is mounted in a position on said stem where an electrical potential is a midpoint potential of said complementary signals.