DIODE-LASER-PUMP MODULE WITH INTEGRATED SIGNAL PORTS FOR PUMPING AMPLIFYING FIBERS AND METHOD
First Claim
1. A method comprising:
- within an enclosure, wherein the enclosure has a first external port and a second external port;
collimating light from one or more laser diodes into a collimated pump-light beam, wherein the pump light in the collimated pump-light beam has a characteristic first wavelength;
directing pump light inside the enclosure from the collimated pump-light beam to the first external port; and
directing signal light inside the enclosure between the first external port and the second external port, wherein the signal light has a characteristic second wavelength different than the first wavelength.
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Accused Products
Abstract
Apparatus and method for collimating pump light of a first wavelength from laser diode(s) into a collimated beam within an enclosure having first and second optical ports, directing pump light from the collimated beam to the first port; and directing signal light inside the enclosure between the first and second port. The signal and pump wavelengths are different. The enclosure provides a pump block having a first port that emits pump light to a gain fiber outside the enclosure and that also passes signal light either into or out of the enclosure, and another port that passes signal light either out of or into the enclosure. Some embodiments use a dichroic mirror to direct pump light to the first port and direct signal light between the first and second ports. Some embodiments include a wavelength-conversion device to change the wavelength of at least some of the signal light.
116 Citations
30 Claims
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1. A method comprising:
within an enclosure, wherein the enclosure has a first external port and a second external port;
collimating light from one or more laser diodes into a collimated pump-light beam, wherein the pump light in the collimated pump-light beam has a characteristic first wavelength;
directing pump light inside the enclosure from the collimated pump-light beam to the first external port; and
directing signal light inside the enclosure between the first external port and the second external port, wherein the signal light has a characteristic second wavelength different than the first wavelength. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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an enclosure, wherein the enclosure has a first external port and a second external port;
one or more laser diodes held within the enclosure;
a beam shaper held within the enclosure and optically coupled to receive pump light from one or more laser diodes and to provide a collimated pump-light beam, wherein the pump light in the collimated pump-light beam has a characteristic first wavelength; and
a first wavelength-selective optical element configured to direct pump light inside the enclosure from the collimated pump-light beam to the first external port and to direct signal light inside the enclosure between the first external port and the second external port, wherein the signal light has a characteristic second wavelength different than the first wavelength. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus comprising:
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an enclosure, wherein the enclosure has a first external port and a second external port;
one or more laser diodes held within the enclosure;
means for directing pump light inside the enclosure from the collimated pump-light beam to the first external port; and
means for directing signal light inside the enclosure between the first external port and the second external port, wherein the signal light has a characteristic second wavelength different than the first wavelength. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification