Accession Number:

ADA046952

Title:

Low Power High Data Rate Modulator.

Descriptive Note:

Final rept. 2 Jan-30 Sep 76,

Corporate Author:

HUGHES RESEARCH LABS MALIBU CALIF

Personal Author(s):

Report Date:

1977-06-01

Pagination or Media Count:

38.0

Abstract:

The objective of this program was to develop a high-data-rate-low-power modulator for doubled NdYAG applications with Gigabitsec data rate capability, 3 W drive power and capable to handle 0.5 W cw power 3.3 W peak using integrated optics techniques. An approach to the development of this modulator has been defined. Most notable is the demonstration of optical power handling capabilities of Ti diffused LiTaO3 waveguides of 300 mW with no damage and no power saturation. Prism coupling efficiency of 55 input and 80 output have been achieved. The waveguide losses at 5145 A have been measured to be 5 dBcm. Single mode and multimode waveguides have been found by the in-diffusion process. The nature of the optical waveguide damage at room temperature and at elevated temperatures approx 150 C has been studied. The high optical power densities sustained by these structures were accommodated by high temperature operation of the waveguide structures. Preliminary experiments on Bragg deflection have also been carried out. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Fiber Optics and Integrated Optics
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE