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Low-cost athermal wavelength-locker integrated in a temperature-tuned single-frequency laser package

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12 Author(s)
Ackerman, D.A. ; TriQuint Optoelectronics, Breinigsville, PA, USA ; Paget, K.M. ; Schneemeyer, L.F. ; Ketelsen, L.J.-P.
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A package-integrated, compact, low-cost, athermal wavelength locker is introduced. It uses a novel etalon material, Schnaelite, to reduce environmental temperature sensitivity well over an order of magnitude compared to commercially available fused silica based lockers. Thermo-optical properties of temperature insensitive etalons are presented. Results demonstrating frequency stability of devices incorporating Schnaelite etalon based discriminators show optical frequency shifts below 1 GHz for large changes in case and laser temperature. This enabling technology promotes future small form-factor, low power consumption, multichannel laser sources.

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Lightwave Technology, Journal of  (Volume:22 ,  Issue: 1 )