Causa, F. and Masanotti, D., 2004. High brightness index-guided parabolic bow-tie laser arrays. IEEE Photonics Technology Letters, 16 (9), pp. 2000-2002.
This letter describes a novel 980-nm parabolic bow-tie laser array (PBTLA) that is suitable for high-power and high-brightness operation. Output powers in excess of 2.5 W/facet pulsed in a 1° (lateral) beam, less than twice the diffraction limit, corresponding to 275MW•cm-2•sr-1 brightness, have been measured without the use of external lenses from uncoated PBTLAs fabricated in-house (top metal contact surface area ~ 0.1 mm2). Experimental results presented in this letter indicate that coherence effects are significant in the operation of such devices. Theoretical models based on the simple diffraction theory and on the coupled-mode theory have been used to interpret the experimental results.
|Item Type ||Articles|
|Creators||Causa, F.and Masanotti, D.|
|Uncontrolled Keywords||high power, index-guiding, high brightness lasers, tapered geometry lasers|
|Departments||Faculty of Engineering & Design > Electronic & Electrical Engineering|
|Additional Information||©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
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