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1955F-B-DI-A-1590-SA-06-B Datasheet(PDF) 3 Page - Emcore Corporation

Part # 1955F-B-DI-A-1590-SA-06-B
Description  1955 F/R/W Coaxial DFB Laser Diode
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Manufacturer  EMCORE [Emcore Corporation]
Direct Link  http://www.emcore.com
Logo EMCORE - Emcore Corporation

1955F-B-DI-A-1590-SA-06-B Datasheet(HTML) 3 Page - Emcore Corporation

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DATASHEET | AUGUST 2012
FIBER OPTICS
| REV 2012.08
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
Electrical/Optical Characteristics (continued)
Parameters
Symbol
Conditions/Notes
Min
Typ
Max
Unit
Tracking Error
ΔPf
IMON = const
ER = 10log(PO/2.0) [dB]
-1
-
+1
dB
Optical Isolation, Tcase = 25ºC
ISO
Double Isolator
Single Isolator
45
30
-
-
-
-
dB
Spectral Width (-20 dB)

Iop
-
0.1
1.0
nm
Side Mode Suppression Ratio
SMSR
Iop
30
45
-
dB
Optical Return Loss
ORL
Tcase = 25ºC
35
-
-
dB
Rise Time
tr
Tcase = 25ºC
-
0.05
0.10
ns
Fall Time
tf
Tcase = 25ºC
-
0.10
0.15
ns
Extinction Ratio
ER
10log (2.omW/Pf (Ith))
10
-
-
dB
1. Referenced to base of TO header.
Forward Path RF Characteristics
1955F Performance Parameter
Symbol
Conditions/Notes
Min
Typ
Max
Unit
Frequency Response Flatness
1
|S21|
47 MHz – 1002 MHz
5 MHz – 4000 MHz
-
-
-
-
1
4
dBp-p
Response Up-tilt
1
47 MHz < f < 1002 MHz
-1
3
dB
Carrier-to-Noise Ratio
2,3,4
CNR
Iop
51
-
-
dB
Composite Second Order
2,3,4
Standard Linearity
Enhanced Linearity
CSO
Iop
Tcase = 25ºC
-
-
-
-
-55
-57
dBc
Composite Triple Beat
2,3,4
Standard Linearity
Enhanced Linearity
CTB
Iop
Tcase = 25ºC
-
-
-
-
-65
-68
dBc
1. Iop, Tcase = 25C. Test with the laser Input pin matched to a 50 system.
2. 3.7% OMI, 79 NTSC unmodulated carriers (50 MHz to 550 MHz). 10 km fiber.
3. Received power = 0 dBm.
4. Iop, Tcase = 25C. Test with the laser Input pin matched to a 75 system.
Return Path RF Characteristics
1955R Performance Parameters
Symbol
Conditions/Notes
Min
Typ
Max
Unit
Frequency Response Flatness
1
|S21|
5 MHz - 200 MHz
-
-
1
dBp-p
Second Order Distortion
2
Standard Linearity
Enhanced Linearity
DSO
PF = 3 dBm, OMI = 10% each
2-tone test: f1=13MHz, f2=19MHz
20 km of fiber
(7.5 dB total loss with connector)
DSO meas at 6MHz, 32MHz
-
-
-
-
-45
-50
dBc
Third Order Distortion
2
Standard Linearity
Enhanced Linearity
DTB
PF = 3 dBm, OMI = 10% each
2-tone test: f1=13MHz, f2=19MHz
20 km of fiber
(7.5 dB total loss with connector)
DTO meas at 7MHz, 25MHz
-
-
-
-
-63
-65
dBc
1. Iop, Tcase = 25C. Test with the laser Input pin matched to a 50 system.
2. Iop, Tcase = 25C. Test with laser input pin matched to a 75 system.
1955 F/R/W Coaxial DFB Laser Diode
1550 nm CWDM 5 MHz – 4000 MHz


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