Age compensation in optoelectronic modules with integrated temperture control

A method of controlling the wavelength of emitted light for an optoelectronic assembly, the optoelectronic assembly having an associated operational lifetime, comprising:

• selecting one or more control parameters for the optoelectronic assembly so as to operate the optoelectronic assembly within a defined channel of operation, said channel including a range of wavelengths centered around a channel center wavelength;
• the selected one or more control parameters causing the optoelectronic assembly to emit light at an operating wavelength that is within a predefined wavelength control tolerance of a target wavelength, wherein the target wavelength is associated with the selected one or more control parameters and is offset from the channel center wavelength by a wavelength offset such that the target wavelength falls within the channel of operation by at least the predefined wavelength control tolerance;
• and
• at least once during the operational lifetime of the optoelectronic assembly, adjusting at least one control parameter of the selected one or more control parameters so as the adjust the operating wavelength of the optoelectronic assembly by a wavelength shift amount to an adjusted wavelength, the adjustment of the target wavelength compensating at least in part for a predicted wavelength drift of the optoelectronic assembly over at least a portion of the operational lifetime of the optoelectronic assembly, such that the adjusted wavelength falls within the channel of operation by at least the predefined wavelength control tolerance.

A method of controlling the wavelength of emitted light for an optoelectronic assembly, the optoelectronic assembly having an associated operational lifetime, comprising:

• selecting one or more control parameters for the optoelectronic assembly so as to operate the optoelectronic assembly within a defined channel of operation, said channel including a range of wavelengths centered around a channel center wavelength;
• the selected one or more control parameters causing the optoelectronic assembly to emit light at an operating wavelength that is within the channel of operation by at least a predefined wavelength control tolerance;
• and
• at least once during the operational lifetime of the optoelectronic assembly, adjusting at least one control parameter of the selected one or more control parameters so as the adjust the operating wavelength of the optoelectronic assembly by a wavelength shift amount to an adjusted wavelength, the adjustment of the target wavelength compensating at least in part for a predicted wavelength drift of the optoelectronic assembly over at least a portion of the operational lifetime of the optoelectronic assembly, such that the adjusted wavelength falls within the channel of operation by at least the predefined wavelength control tolerance.

An optoelectronic assembly, comprising:

• a laser diode for emitting light;
• and
• control apparatus coupled to the laser diode, the control apparatus for operating the laser diode within a defined channel of operation, said channel including a range of wavelengths centered around a channel center wavelength;
• the control apparatus configured to initially operate the laser diode at a target wavelength that is offset from the channel center wavelength by a selected wavelength offset such that (A) the target wavelength falls within the channel of operation by at least a predefined wavelength control tolerance, and (B) a predicted end of lifetime wavelength, comprising the target wavelength adjusted by a predicted wavelength drift of the optoelectronic assembly over a defined operational lifetime, falls within the channel of operation by at least the predefined wavelength control tolerance.

An optoelectronic assembly, comprising:

• a laser diode for emitting light;
• and
• control apparatus coupled to the laser diode, the control apparatus for operating the laser diode within a defined channel of operation, said channel including a range of wavelengths centered around a channel center wavelength;
• the control apparatus configured to initially operate the laser diode at an operating wavelength that is within the channel of operation by at least a predefined wavelength control tolerance;
• and
• the control apparatus further configured to, at least once during the operational lifetime of the optoelectronic assembly, adjust at least one control parameter so as the adjust the operating wavelength of the laser diode by a wavelength shift amount to an adjusted wavelength, the adjustment of the target wavelength compensating at least in part for a predicted wavelength drift of the laser diode over at least a portion of the operational lifetime of the laser diode, such that the adjusted wavelength falls within the channel of operation by at least the predefined wavelength control tolerance.