Wavelength stabilized light source
First Claim
1. An apparatus for producing wavelength stabilized electromagnetic radiation, the apparatus comprising a broadband semiconductor radiation source configured to provide broadband electromagnetic radiation having a mean wavelength λ
- m, and a bandpass radiation filter, an input of said bandpass radiation filter being in optical connection to an output of said radiation source, and a common temperature stabilizer being in thermal contact with both, the radiation source and the radiation filter.
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Accused Products
Abstract
An apparatus for producing wavelength stabilized electromagnetic radiation is provided, the apparatus comprising a broadband semiconductor radiation source configured to produce broadband electromagnetic radiation having a mean wavelength λm, and a bandpass radiation filter, an input of said bandpass radiation filter being in optical connection to an output of said radiation source, and a common temperature stabilizer being in thermal contact with both, the radiation source and the radiation filter. In a preferred embodiment, the radiation source—which is, for example, a superluminescent light emitting diode—and the bandpass radiation filter are provided on a common mount which is in contact with a thermoelectric cooler acting, together with temperature sensing means and control means, as temperature stabilizer.
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Citations
15 Claims
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1. An apparatus for producing wavelength stabilized electromagnetic radiation, the apparatus comprising a broadband semiconductor radiation source configured to provide broadband electromagnetic radiation having a mean wavelength λ
- m, and a bandpass radiation filter, an input of said bandpass radiation filter being in optical connection to an output of said radiation source, and a common temperature stabilizer being in thermal contact with both, the radiation source and the radiation filter.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- 12. A system for generating electromagnetic radiation comprising a package of at least one superluminescent light emitting diode operable to emit primary electromagnetic radiation with a first bandwidth and a band pass filter capable of filtering the primary radiation to yield secondary radiation with a second bandwidth, which is smaller than the first bandwidth, an input of the band pass filter being optically coupled to an output of the at least one superluminescent light emitting diode, the package being thermally coupled to a thermoelectric cooler, the system further comprising a temperature sensor being in thermal contact with the package and a controller operable to control the thermoelectric cooler based on signals input from the temperature sensor.
Specification