Optical transmitter with a least pair of semiconductor laser diodes
First Claim
Patent Images
1. An optical transmitter, comprising:
- a first laser diode having an anode and a cathode;
a first driver connected to the anode of the first laser diode;
a second laser diode having an anode and a cathode, the anode of the second laser diode being connected to the cathode of the first laser diode;
a second driver connected to the cathode of the second laser diode;
an impedance device connected between the anode of the first laser diode and the cathode of the second laser diode; and
a compensating circuit connected to the cathode of the first laser diode and the anode of the second laser diode, wherein the impedance device, the first laser diode, and the second laser diode have an impedance substantially same with respect to each other.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention is to provide an optical transmitter with reduced power consumption. The optical transmitter includes two laser diodes connected in series to each other, one of which is connected in the anode thereof to the first driver, while the other of which is connected in the cathode thereof to the second driver. Further, between the anode of the first laser diode and the cathode of the second laser diode connects an impedance device. In the present invention, the first and second laser diodes, and the impedance device have the substantially same impedance to each other within a concerned frequency range.
17 Citations
5 Claims
-
1. An optical transmitter, comprising:
-
a first laser diode having an anode and a cathode;
a first driver connected to the anode of the first laser diode;
a second laser diode having an anode and a cathode, the anode of the second laser diode being connected to the cathode of the first laser diode;
a second driver connected to the cathode of the second laser diode;
an impedance device connected between the anode of the first laser diode and the cathode of the second laser diode; and
a compensating circuit connected to the cathode of the first laser diode and the anode of the second laser diode, wherein the impedance device, the first laser diode, and the second laser diode have an impedance substantially same with respect to each other. - View Dependent Claims (2, 3, 4, 5)
-
Specification