Single sideband suppressed carrier optical modulation

Buhrer, Carl F.; Fowler, V. J.; Bloom, Lynette; Baird, D. H.; Conwell, E. M.

doi:10.1109/iedm.1962.187343

Cited by 1 publication

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“…It is possible to get complete carrier suppression in this way. Single side-band modulators based on this principle using two potassium dihydrogen phosphate (KDP) cystals have been demonstrated [7,8]. A somewhat similar system using a rotating microwave field and a quartz electro-optic medium has been demonstrated by Page and Pursey [9].…”

Section: The Principle Of the Methodsmentioning

confidence: 97%

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The frequency shifting of laser light by electro-optic techniques

Drain¹,

Moss²

1972

Opto-electronics

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In velocity measurements by the laser Doppler method, a requirement exists for changing the frequency of one light beam with respect to another derived from the same source. This is particularly useful for the determination of the sign of a velocity. The required frequency shifting or single side-band generation can be accomplished by the use of electro-optical effects and a number of possible arrangements are discussed. Trials were made using Kerr cells and electro-optic crystals and single side-band generation demonstrated by a simple Doppler beating experiment. If a low efficiency can be tolerated as in Doppler beating with a reference beam, the production of a pure frequency shifted beam is not difficult up to frequencies of a few megahertz. The differential Doppler or fringe system however requires shifted and non-shifted beams of equal intensity and hence high efficiency conversion is imperative. Radio-frequency driving power requirements may also be a limitation. The theoretical efficiencies of various multi-cell electro-optic arrangements have been calculated as a function of R.F. excitation. The possible efficiency approaches unity as the number of cells is increased.

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Section: The Principle Of the Methodsmentioning

confidence: 97%

“…In the case of two equal cells inclined at 45 ~ with a 90 ~ electrical phase difference, the intensities in the various side-bands were calculated algebraically [7]. The intensities relative to the light at the input are as follows:…”

Section: Strong Excitationmentioning

confidence: 99%

The frequency shifting of laser light by electro-optic techniques

Drain¹,

Moss²

1972

Opto-electronics

View full text Add to dashboard Cite

show abstract

Single sideband suppressed carrier optical modulation

Cited by 1 publication

References 0 publications

The frequency shifting of laser light by electro-optic techniques

The frequency shifting of laser light by electro-optic techniques

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