Design considerations of the optical image crossbar switch

Masaki Fukui; Ken-ichi Kitayama

doi:10.1364/AO.31.005542

Applied Optics
Vol. 31,
Issue 26,
pp. 5542-5547
(1992)
•https://doi.org/10.1364/AO.31.005542

Design considerations of the optical image crossbar switch

Masaki Fukui and Ken-ichi Kitayama

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Masaki Fukui and Ken-ichi Kitayama, "Design considerations of the optical image crossbar switch," Appl. Opt. 31, 5542-5547 (1992)

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Abstract

Novel types of an optical image crossbar switch based on multiple imaging systems are proposed and demonstrated. The optical systems are based on gometric optics; accordingly, the systems have a large space bandwidth 20 × 20 switching for images with 10³ × 10³ pixels is realizable with the proposed optical image crossbar switches. A preliminary experiment is conducted for one of the proposed configurations. The possibility of incorporating the proposed optical switching system into optical parallel processing systems is particularly significant.

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Relational Devices (D Lenses, S Lenses)	Cylindrical and Spherical Lenses	Spherical Lenses
Optical shutter array	Type I (Fig. 3)	Type II (Fig. 4)
Point-light source array	Type III (Fig. 5)	Type IV (Fig. 6)

Type of OPIX	Type I	Type II	Type III	Type IV
Total number of lenses	3	2	3	2
Total number of lens array	5	4	4	5
Arrangement of input images	1-D	2-D	1-D	2-D
Relational device	SLM	SLM	Array of surface-emitting diode
Number of pixels	Same	Same	Same
Response time	Large	Large	Small	Small
Throughput	High	High	Low	Low

Parameters	L₁	L₄ and L₇	L₅ and L₆	L₂, L₃, and L₈
Focal length (mm)	20	40	20	40
Aperture size (mm)	5 × 10	10 × 20	ϕ10	20 × 40

Relational Devices (D Lenses, S Lenses)	Cylindrical and Spherical Lenses	Spherical Lenses
Optical shutter array	Type I (Fig. 3)	Type II (Fig. 4)
Point-light source array	Type III (Fig. 5)	Type IV (Fig. 6)

Type of OPIX	Type I	Type II	Type III	Type IV
Total number of lenses	3	2	3	2
Total number of lens array	5	4	4	5
Arrangement of input images	1-D	2-D	1-D	2-D
Relational device	SLM	SLM	Array of surface-emitting diode
Number of pixels	Same	Same	Same
Response time	Large	Large	Small	Small
Throughput	High	High	Low	Low

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Applied Optics