Title:
OLT OPTICAL TRANSMITTER AND TEMPERATURE CONTROL METHOD FOR OLT OPTICAL TRANSMITTER
Document Type and Number:
WIPO Patent Application WO/2013/186834
Kind Code:
A1
Abstract:
Provided are an OLT optical transmitter and a temperature control method for the OLT optical transmitter such that temperature control is performed in such a manner that when the ambient-side temperature (outside temperature) of a hot/cold element is in a predetermined range, a light-emitting element has the same temperature as the outside temperature, and when the ambient-side temperature is outside the predetermined range, the light-emitting element has a constant temperature. This makes it possible to reduce power consumed by a hot/cold element driving circuit while setting temperature in such a manner that the range of a wavelength of the light-emitting element falls in a desired wavelength band, mainly in a PON system, which is one type of optical communications access system.
More Like This:
| WO/2022/238434 | OPTOELECTRONIC LIGHTING DEVICE |
| JPWO2003005106 | Semiconductor laser module and optical amplifier |
| JP6022839 | Luminescent device |
Inventors:
NOGAMI MASAMICHI (JP)
IHARA SUSUMU (JP)
IHARA SUSUMU (JP)
Application Number:
PCT/JP2012/064909
Publication Date:
December 19, 2013
Filing Date:
June 11, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
NOGAMI MASAMICHI (JP)
IHARA SUSUMU (JP)
NOGAMI MASAMICHI (JP)
IHARA SUSUMU (JP)
International Classes:
H01S5/024
Foreign References:
| JPH11126939A | 1999-05-11 | |||
| JP2008235683A | 2008-10-02 | |||
| JP2001230489A | 2001-08-24 | |||
| JP2003318481A | 2003-11-07 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)
Michiharu Soga (JP)
Download PDF:
Previous Patent: DIGITAL BROADCAST RECEIVER
Next Patent: MULTI-SCREEN DISPLAY SYSTEM, DISPLAY DEVICE, ID SETTING APPARATUS, AND ID SETTING METHOD
Next Patent: MULTI-SCREEN DISPLAY SYSTEM, DISPLAY DEVICE, ID SETTING APPARATUS, AND ID SETTING METHOD