Patent ID: 7232264

Claim:
An optoelectronic arrangement comprising: a laser component, a cooling device of small design for cooling the laser component down to a constant temperature, a device for the direct optical detection of the emitted wavelength of the laser component, whose signal is used to control the cooling device for controlling the operating point of the laser component, and a TO package of small design with an extent of at most 6.5 mm perpendicular to an optical axis of the TO package and in which the above named components are arranged, the TO package comprising a base plate, where the optical axis of the TO package is perpendicular to the base plate, wherein the device for the direct optical detection of the emitted wavelength of the laser component comprises a first and a second photodiode that are both irradiated with a fraction of the light emitted by the laser component, the first photodiode having an optical sharp cutoff filter associated therewith whose transmitted light power is a function of the emitted wavelength of the laser component, and wherein means are provided for directly detecting the actual emitted wavelength of the laser component on the basis of the signals both of the first photodiode and the second photodiode.