Optical Interrogation System And Sensor System

Anne Everall Lorna; David Lloyd Glynn

Optical Interrogation System And Sensor System

Anne Everall Lorna (Inventor)
, David Lloyd Glynn (Inventor)

Aston Photonic Technologies Limited

Research output: Patent

Abstract

An optical interrogation system (10) comprises optical amplifying and gating means, in the form of a semiconductor optical amplifier (SOA) (14) and an optical source (12, 14). Drive means (22) (an electrical pulse generator driven by a variable frequency oscillator) are provided to generate electrical drive pulses (see inset (a)) which are applied to the SOA (14), to cause the SOA (14) to switch on and off. The optical source comprises a superluminescent diode (SLD) (12), the CW output from which is gated into optical pulses by the SOA (14). The SOA (14) is optically coupled to the waveguide (16) containing an array of reflective optical elements (gratings G) to be interrogated. The interrogation system further comprises optical detection means (18), optically coupled to the SOA (14), operable to evaluate the wavelength of a returned optical pulse transmitted by the SOA (14).

Original language	English
Patent number	AU2003288565A1
IPC	H04B 10/071 A I,G01D5/353
Priority date	15/12/03
Filing date	15/12/03
Publication status	Published - 9 Jul 2004
Externally published	Yes

Cite this

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abstract = "An optical interrogation system (10) comprises optical amplifying and gating means, in the form of a semiconductor optical amplifier (SOA) (14) and an optical source (12, 14). Drive means (22) (an electrical pulse generator driven by a variable frequency oscillator) are provided to generate electrical drive pulses (see inset (a)) which are applied to the SOA (14), to cause the SOA (14) to switch on and off. The optical source comprises a superluminescent diode (SLD) (12), the CW output from which is gated into optical pulses by the SOA (14). The SOA (14) is optically coupled to the waveguide (16) containing an array of reflective optical elements (gratings G) to be interrogated. The interrogation system further comprises optical detection means (18), optically coupled to the SOA (14), operable to evaluate the wavelength of a returned optical pulse transmitted by the SOA (14).",

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AU - Glynn, David Lloyd

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N2 - An optical interrogation system (10) comprises optical amplifying and gating means, in the form of a semiconductor optical amplifier (SOA) (14) and an optical source (12, 14). Drive means (22) (an electrical pulse generator driven by a variable frequency oscillator) are provided to generate electrical drive pulses (see inset (a)) which are applied to the SOA (14), to cause the SOA (14) to switch on and off. The optical source comprises a superluminescent diode (SLD) (12), the CW output from which is gated into optical pulses by the SOA (14). The SOA (14) is optically coupled to the waveguide (16) containing an array of reflective optical elements (gratings G) to be interrogated. The interrogation system further comprises optical detection means (18), optically coupled to the SOA (14), operable to evaluate the wavelength of a returned optical pulse transmitted by the SOA (14).

AB - An optical interrogation system (10) comprises optical amplifying and gating means, in the form of a semiconductor optical amplifier (SOA) (14) and an optical source (12, 14). Drive means (22) (an electrical pulse generator driven by a variable frequency oscillator) are provided to generate electrical drive pulses (see inset (a)) which are applied to the SOA (14), to cause the SOA (14) to switch on and off. The optical source comprises a superluminescent diode (SLD) (12), the CW output from which is gated into optical pulses by the SOA (14). The SOA (14) is optically coupled to the waveguide (16) containing an array of reflective optical elements (gratings G) to be interrogated. The interrogation system further comprises optical detection means (18), optically coupled to the SOA (14), operable to evaluate the wavelength of a returned optical pulse transmitted by the SOA (14).

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M3 - Patent

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ER -

Optical Interrogation System And Sensor System

Abstract

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