dm8000-u-010-079-l75-21-107-sa-aa Emcore Corporation, dm8000-u-010-079-l75-21-107-sa-aa Datasheet - Page 4

• Manufacturer Part Number: dm8000-u-010-079-l75-21-107-sa-aa
• Description: Model Dm8000-u Optical Transmitter Direct Modulation, Dwdm, Low Distortion, Wideband
• Manufacturer: Emcore Corporation

Model DM8000-U Direct Modulation Optical Transmitter
Noise and Distortion Characteristics for CATV Input
Fix Fiber Length Option:
CATV 75Ω Ω Ω Ω Input Option
79ch NTSC
79ch NTSC + 75ch QAM @ -6dB
42ch CENELEC
60ch PAL
JCTEA: 57ch Analog + 40ch QAM @ -10dB
JCTEA: 11ch Analog + 80ch QAM @ -10dB
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Test fiber length is based on the model. For example: 20km option is tested with 3m, 10km and 20km of SMF28 fiber; 25km option
is tested with 3m, 15km and 25km of SMF28 fiber.
CNR may degrade up to 0.5dB over the operating temperature range.
Test with EDFA, –0dBm received optical power.
QAM format = 256-QAM, ITU-T J.83 Annex C, Analog channels are modulated.
L-band input is injected with 2 tones, F1 = 2000MHz, F2 = 2000.5MHz with –13dBm/tone.
Test with EDFA, –6dBm received optical power, QAM format = 64-QAM. 2 tones, F1 = 2000MHz, F2 = 2000.5MHz, applied to L-
Band port with –13dB/tone.
Test with EDFA, –8dBm received optical power, QAM format = 64-QAM. 2 tones, F1 = 2000MHz, F2 = 2000.5MHz, applied to L-
Band port with –13dB/tone.
CSO and CTB may degrade up to 1.5dB over the temperature range.
(4)
(4)
(4)
0-10km, 5-15km, 10-20km
0-10km, 5-15km, 10-20km
0-10km, 5-15km, 10-20km
0-10km, 5-15km, 10-20km
0-10km, 5-15km, 10-20km
0-10km, 5-15km, 10-20km
(4)
15-25km
15-25km
15-25km
15-25km
15-25km
15-25km
(7)
(8)
EMCORE CORPORATION
80ch QAM = 11.2
40ch QAM = 6.2
75ch QAM = 9
RF Level/ch
57ch = 16.2
11ch = 21.2
79ch = 15
(dBmV)
17.75
16.2
15
Composite
(dBm)
-14.77
-13.84
-14.77
-14.77
-14.70
-14.76
BER
10
-
-
-
-
-
-5
(5)
DATASHEET|
CNR
(dB)
50.5
50.5
50.5
50
50
49
50
50
46
45
46
45
(1,2)
CSO
(dBc)
-58
-58
-58
-58
-58
-58
AUGUST 08, 2011
(1,3,6)
CTB
(dBc)
-65
-65
-65
-65
-65
-65
(1,3,6)
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