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RE: 802.3ae and the 10GEA




Jay:

Thanks for more information.

Today, at GbE rate, even FP transceivers are twice the cost of VCSEL
transceivers.  Another factor affecting the cost is the volume.  After all,
VCSEL transceiver has over 85% of the GbE market which will keep the cost
down.


Regards,

Edward S. Chang
NetWorth Technologies, Inc.
EChang@xxxxxxxxxxxxxxxx
Tel: (610)292-2870
Fax: (610)292-2872






-----Original Message-----
From: owner-stds-802-3-hssg-pam@xxxxxxxx
[mailto:owner-stds-802-3-hssg-pam@xxxxxxxx]On Behalf Of
jay.hoge@xxxxxxxxxxxxxx
Sent: Thursday, April 20, 2000 6:36 AM
To: Edward Chang
Cc: stds-802-3-hssg-pam@xxxxxxxx
Subject: RE: 802.3ae and the 10GEA





Ed,

A DFB without the requirement for high sidemode suppresion should not have
a cost significantly higher than that of a Fabry-Perot laser. Today, 1.3u
F-P die are roughly at parity with 0.85u VCSEL die. A 0.65u F-P laser die
is less than half as expensive as a VCSEL.

Jay