Lambdameter for accurate stability measurements of optical transmitters

Gregory E. Obarski

doi:10.1117/12.56861

1 February 1992 Lambdameter for accurate stability measurements of optical transmitters

Gregory E. Obarski

Proceedings Volume 1620, Laser Testing and Reliability; (1992) https://doi.org/10.1117/12.56861
Event: SPIE Technical: OPTCON '91, 1991, San Jose, CA, United States

Abstract

To accurately measure wavelengths of 1.3 and 1.5 micrometers single-mode sources, we developed a lambdameter that can be used in the near IR and the red regions of the spectrum. Wavelength accuracy and resolution are approximately equals 0.1 ppm (parts per million) at 0.633 micrometers . They were measured by comparing each of two adjacent modes of a HeNe laser, frequency- stabilized by a polarization technique, with a single mode from a second frequency-stabilized HeNe laser. We also verified the wavelength of the reference laser with an accuracy of 1 ppm by comparing it with the 1.52 micrometers HeNe laser line. The uncertainty in wavelength of the 1.52 micrometers HeNe laser is limited to the width of the Doppler gain curve, whose peak is known within 0.2 ppm. We describe our lambdameter and the performance of its reference laser as a wavelength transfer standard. Measurements on a commercially packaged 1.52 micrometers distributed-feedback (DBF) laser diode transmitter show that its wavelength fluctuates by at least 1 ppm during normal changes in room temperature.

Citation Download Citation

Gregory E. Obarski "Lambdameter for accurate stability measurements of optical transmitters", Proc. SPIE 1620, Laser Testing and Reliability, (1 February 1992); https://doi.org/10.1117/12.56861

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