FREQUENCY TUNABLE LASER SYSTEM

There is provided a frequency tunable laser system (1) comprising a laser, frequency varying means (6) arranged for varying an optical frequency output of the laser (2), an intensity sensor (7m) arranged for receiving light (5b) from the laser (2), and a processor (8) arranged for controlling the fr...

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Hauptverfasser:	DE BOER, Bart Michiel, NIEUWLAND, Remco Alexander
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS COLORIMETRY DEVICES USING STIMULATED EMISSION ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING
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creator	DE BOER, Bart Michiel NIEUWLAND, Remco Alexander
description	There is provided a frequency tunable laser system (1) comprising a laser, frequency varying means (6) arranged for varying an optical frequency output of the laser (2), an intensity sensor (7m) arranged for receiving light (5b) from the laser (2), and a processor (8) arranged for controlling the frequency varying means (6) for varying the optical frequency output of the laser (2) and receiving an intensity signal (Sm) from the intensity sensor (7m) for monitoring the intensity output of the laser (2). The frequency tunable laser system (1) further comprises an external reflective surface (9), in use, fixedly arranged in a light path of the laser beam (5) outside the laser cavity (9) at a predefined distance (L) from the second reflective surface (2b) along the light path of the laser beam (5) to reflect part (5') of the emitted laser beam (5) back into the laser cavity (9). The processor (8) is further arranged for processing the intensity signal (Sm) and registering oscillations of the intensity output (I) caused by interference of the reflected part (5') of the laser beam (5) in the cavity (9) and responsive to a change in optical frequency and calculating the change in optical frequency output from the registered oscillations of the intensity output and predefined distance (L).
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The frequency tunable laser system (1) further comprises an external reflective surface (9), in use, fixedly arranged in a light path of the laser beam (5) outside the laser cavity (9) at a predefined distance (L) from the second reflective surface (2b) along the light path of the laser beam (5) to reflect part (5') of the emitted laser beam (5) back into the laser cavity (9). The processor (8) is further arranged for processing the intensity signal (Sm) and registering oscillations of the intensity output (I) caused by interference of the reflected part (5') of the laser beam (5) in the cavity (9) and responsive to a change in optical frequency and calculating the change in optical frequency output from the registered oscillations of the intensity output and predefined distance (L).</description><language>eng ; fre ; ger</language><subject>BASIC ELECTRIC ELEMENTS ; COLORIMETRY ; DEVICES USING STIMULATED EMISSION ; ELECTRICITY ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT ; MEASURING ; PHYSICS ; RADIATION PYROMETRY ; TESTING</subject><creationdate>2018</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181024&DB=EPODOC&CC=EP&NR=2839554B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181024&DB=EPODOC&CC=EP&NR=2839554B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DE BOER, Bart Michiel</creatorcontrib><creatorcontrib>NIEUWLAND, Remco Alexander</creatorcontrib><title>FREQUENCY TUNABLE LASER SYSTEM</title><description>There is provided a frequency tunable laser system (1) comprising a laser, frequency varying means (6) arranged for varying an optical frequency output of the laser (2), an intensity sensor (7m) arranged for receiving light (5b) from the laser (2), and a processor (8) arranged for controlling the frequency varying means (6) for varying the optical frequency output of the laser (2) and receiving an intensity signal (Sm) from the intensity sensor (7m) for monitoring the intensity output of the laser (2). The frequency tunable laser system (1) further comprises an external reflective surface (9), in use, fixedly arranged in a light path of the laser beam (5) outside the laser cavity (9) at a predefined distance (L) from the second reflective surface (2b) along the light path of the laser beam (5) to reflect part (5') of the emitted laser beam (5) back into the laser cavity (9). 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The frequency tunable laser system (1) further comprises an external reflective surface (9), in use, fixedly arranged in a light path of the laser beam (5) outside the laser cavity (9) at a predefined distance (L) from the second reflective surface (2b) along the light path of the laser beam (5) to reflect part (5') of the emitted laser beam (5) back into the laser cavity (9). The processor (8) is further arranged for processing the intensity signal (Sm) and registering oscillations of the intensity output (I) caused by interference of the reflected part (5') of the laser beam (5) in the cavity (9) and responsive to a change in optical frequency and calculating the change in optical frequency output from the registered oscillations of the intensity output and predefined distance (L).</abstract><oa>free_for_read</oa></addata></record>
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language	eng ; fre ; ger
recordid	cdi_epo_espacenet_EP2839554B1
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subjects	BASIC ELECTRIC ELEMENTS COLORIMETRY DEVICES USING STIMULATED EMISSION ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING
title	FREQUENCY TUNABLE LASER SYSTEM
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