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1. (WO2007005803) RETRO-REFLECTING LENS FOR FOR EXTERNAL CAVITY OPTICS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/005803 International Application No.: PCT/US2006/025933
Publication Date: 11.01.2007 International Filing Date: 30.06.2006
IPC:
H01S 5/14 (2006.01) ,G02B 3/00 (2006.01) ,G02B 5/10 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
5
Semiconductor lasers
10
Construction or shape of the optical resonator
14
External cavity lasers
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3
Simple or compound lenses
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
08
Mirrors
10
with curved faces
Applicants:
INTEL CORPORATION [US/US]; 2200 Mission College Boulevard Santa Clara, California 95052, US (AllExceptUS)
MCDONALD, Mark [US/US]; US (UsOnly)
Inventors:
MCDONALD, Mark; US
Agent:
HULL, Michael ; MARSHALL, GERSTEIN & BORUN 6300 Sears Tower Chicago, Illinois 60606, US
Priority Data:
11/170,93130.06.2005US
Title (EN) RETRO-REFLECTING LENS FOR FOR EXTERNAL CAVITY OPTICS
(FR) LENTILLE RETROREFLECHISSANTE POUR UN DISPOSITIF OPTIQUE A CAVITE EXTERNE
Abstract:
(EN) An improved external cavity laser apparatus (20) is disclosed whereby instead of a collimated beam being aligned with a flat mirror, the collimated beam is directed at a retro-reflecting lens (10). The front (12) of the lens includes a focusing lens function and a rear (13) of the lens is coated with reflective material. The collimated beam is then focused at the rear of the lens where it is reflected back towards the tuning elements, collimating lens and gain medium (22) of the external cavity laser. Alignment tolerances for the retro-reflecting lens are greatly relaxed as compared to a flat mirror device. As a result, manufacturing external cavity lasers is facilitated, tooling costs are reduced and throughput is increased and reliability of the resulting device is increased as misalignment during the useful life of the resulting device is reduced or eliminated.
(FR) L'invention concerne un appareil laser à cavité externe amélioré (20) dans lequel, au lieu d'être aligné sur un miroir plat, un faisceau collimé est dirigé sur une lentille rétroréfléchissante (10). La partie frontale (12) de la lentille comprend une fonction lentille de focalisation et la partie arrière (13) de la lentille est revêtue d'un matériau réfléchissant. Le faisceau collimé est ensuite focalisé à l'arrière de la lentille, où il est réfléchi vers les éléments de réglage, la lentille collimatrice et le milieu de gain (22) du laser à cavité externe. Les tolérances d'alignement pour la lentille rétroréfléchissante sont considérablement relâchées comparativement à un dispositif de miroir plat. Par conséquent, la fabrication de lasers à cavité externe est facilitée, les frais d'outillage sont réduits, le rendement est augmenté et la fiabilité du dispositif obtenu est augmentée à mesure que le déversement pendant la vie utile du dispositif obtenu est réduit, voire éliminé.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020080016700EP1897187JP2008544579US20070002922