Loss-induced phase-sensitive spatial light modulator with a wide field of view

Man-Fang Huang, Elsa Garmire

Research output: Contribution to journalArticle

Abstract

We investigate the feasibility of achieving practical phase modulation by changing only the absorption of the device. We present a spatial light modulator that consists of a three-mirror cavity with lossy slabs inserted between the mirrors. When only the absorption of these slabs is changed, this device can have a gradual change in phase, but no intensity modulation. Theoretical analysis by the use of numbers appropriate to multiple quantum wells shows that the total phase-tuning range can be as large as 2π with an absorption coefficient change of less than 9000 cm-1; the length of each multiple-quantum-well slab is ˜1.5 μm. This gives an expected 16º field of view with the nanosecond speed typical of semiconductors.

Original languageEnglish
Pages (from-to)2856-2860
Number of pages5
JournalApplied Optics
Volume33
Issue number14
DOIs
Publication statusPublished - 1994 May 10

Fingerprint

light modulators
Semiconductor quantum wells
field of view
slabs
Phase modulation
quantum wells
mirrors
Mirrors
Tuning
Modulation
Semiconductor materials
phase modulation
absorptivity
tuning
modulation
cavities
Spatial light modulators

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Cite this

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Loss-induced phase-sensitive spatial light modulator with a wide field of view. / Huang, Man-Fang; Garmire, Elsa.

In: Applied Optics, Vol. 33, No. 14, 10.05.1994, p. 2856-2860.

Research output: Contribution to journalArticle

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