Optical transmitter module, optical module, optical transmission equipment and method of manufacturing thereof
AssigneeLumentum Japan, Inc.
InventorsShunya Yamauchi, Yoshihiro Nakai, Takayuki Nakajima, Masahiro Ebisu
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Abstract
An optical transmitter module includes optical semiconductor devices including a first optical semiconductor device, a temperature adjustment means for collectively performing temperature adjustment on the optical semiconductor devices, and a first thermal resistor that is disposed between the first optical semiconductor device and the temperature adjustment means, in which, when the temperature adjustment means is driven, the temperature of the first optical semiconductor device is higher than temperatures of other optical semiconductor devices which are different from the first optical semiconductor device.
Claims15
An optical transmitter module comprising:
- a plurality of optical semiconductor devices;
- a temperature adjustment means for performing temperature adjustment collectively on the plurality of optical semiconductor devices;
- and
- a plurality of thermal resistors that are physically separated from one another,
- each thermal resistor, of the plurality of thermal resistors, being disposed between a respective optical semiconductor device, of the plurality of optical semiconductor devices, and the temperature adjustment means,
- wherein, the plurality of thermal resistors are mounted on a submount, and
- wherein, when the temperature adjustment means is driven, a first thermal resistor, of the plurality of thermal resistors, reduces dissipation of heat generated from a first optical semiconductor device such that the temperature adjustment means causes a temperature of the first optical semiconductor device to be higher than a temperature of a second optical semiconductor device of the plurality of optical semiconductor devices.
A method of manufacturing an optical transmitter module comprising optical semiconductor devices, a temperature adjustment means for performing temperature adjustment collectively on the optical semiconductor devices, and thermal resistors that are physically separated from one another, each thermal resistor of the thermal resistors being disposed between a respective optical semiconductor device of the optical semiconductor devices and the temperature adjustment means, the method comprising:
- manufacturing a first optical semiconductor device of the optical semiconductor devices;
- measuring an output wavelength of a light beam emitted from the first optical semiconductor device at a reference temperature;
- comparing the output wavelength with a reference wavelength range corresponding to the first optical semiconductor device so as to obtain a wavelength difference;
- and
- determining a material and dimensions of a first thermal resistor, of the thermal resistors and associated with the first optical semiconductor device, on the basis of the wavelength difference.
Dependencies are inferred from the claim text.