×

Bi-directional optical transceiver module with double caps and method of improving the efficiency and the reliability of same

  • US 20040071413A1
  • Filed: 08/12/2003
  • Published: 04/15/2004
  • Est. Priority Date: 10/10/2002
  • Status: Active Grant
First Claim
Patent Images

1. A bi-directional optical transceiver module comprising:

  • an optical waveguide element through which input and output optical signals pass through;

    a lens holder in an upper end of which the optical waveguide element is inserted and fixed, the lens holder thereby serving as a body tube;

    a lens disposed at an upper portion in the lens holder, the lens converging each of the input and output optical signals;

    a stem supporting a lower end of the lens holder;

    an outer cap disposed on the stem, the outer cap enclosing a photodiode for receiving an optical input signal and converting it to an electrical signal, a semiconductor laser that modulates the electrical signal into an optical output signal, and a wavelength division multiplexing filter; and

    , an inner cap mounted in the outer cap that further isolates the photodiode.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×