American Xtal Technology, Inc. (AXTI) Message Board

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Technology Stocks : American Xtal Technology, Inc. (AXTI)

AXTI 12.34

-5.0%

3:59 PM EST

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To: kinkblot who wrote (153)	12/3/2000 12:59:25 PM
From: kinkblot	Read Replies (1) of 290

Laser Blazers lightreading.com - Report, 11/27/00 Unfortunately, the materials used to make 850nm VCSELs don't translate well to longer wavelengths. As yet there are no commercial devices that operate at the telecom wavelengths of 1310 and 1550 nm. See especially Part 4 on Challenges for long-wavelength VCSELs. AXT's VCSEL wafers have an aluminum gallium arsenide epi structure on a gallium arsenide substrate for 780nm and 850nm wavelength applications. AXT is already a leading supplier of indium phosphide substrates. They have made no mention of InP-based VCSEL wafers, but it would be a natural step for them to look at that for longer wavelengths. WT

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