Re: [8023-10GEPON] [CHANNEL_LINK] RF video issue
Dear Kimura-san,
Thank You for the email and the information.
Would You be willing to shed more light on the parameters of te Tx module (dithering, model etc.). I understand that the launched power levels were in the range of 1 and 13 dBm and not 1 and -13 dBm.
Did You consider the PSC in the signal path ?
When You say "- 10GE improved around 0.2dB gain due to the effect from RF video to 10G" - do You mean that the signal amplitude was actually boosted?
Are You going to prepare the presentation for this meeting in Orlando ? I believe the channel link ad hoc should see it before ...
Best wishes
Marek Hajduczenia (141238)
SIEMENS Networks S.A. - IC COM D1 R
Rua Irmãos Siemens, 1
Ed. 1, Piso 1
Alfragide
2720-093 Amadora
Portugal
* Marek.Hajduczenia@siemens.com
http://www.marekhajduczenia.info/index.php
(+351.21.416.7472 4+351.21.424.2082
-----Original Message-----
From: Mitsunobu Kimura [mailto:mitsunobu.kimura.be@HITACHI.COM]
Sent: quinta-feira, 1 de Março de 2007 10:09
To: STDS-802-3-10GEPON@listserv.ieee.org
Subject: [8023-10GEPON] [CHANNEL_LINK] RF video issue
Importance: High
Dear all,
I am Mitsunobu KIMURA of Hitachi.
I've conducted an experiment to see the raman effect between 10GE LAN PHY
and RF video last month.
But the RF video I tested is a particular system currently working in Japan,
which follows ITU-T Recommendation J.185.
The results are just simple:
- No effects were found from 10G to RF video
- 10GE improved around 0.2dB gain due to the effect from RF video to 10G
Conditions:
- 10GE LAN PHY: 1571, 1591, or 1611nm; TX power 1-13dBm
- RF video: 1558nm; Tx power 16dBm; follows ITU-T Recommendation J.185
- Transmitted via 20km SSMF
- The optical filters completely separated the two optics
So far, I may say that we have a nice RF video system to survive on the 10GEPON.
For your reference, the J.185 is "Transmission equipment for transferring
multi-channel television signals over optical access networks by FM conversion" .
It has more robustness than AM transmission system does as shown in a letter:
IEEE Photonics Technology Letters. Vol.8 No.6, June 1996 .
Regards,
Mitsunobu Kimura
Hitachi Communication Technologies, Ltd.