DATA SHEET| JUNE 14, 2006
EC-48 2.5 Gbit/s External Cavity Directly
Modulated Lasers
200 km, 400 km, and 650 km reach
The EC48 series directly modulated external cavity laser is a cost
effective solution for 2.5 Gbits/s digital transmission up to 650 km in
SMF-28 fiber. The laser is fabricated in a 14-pin hermetically sealed
butterfly package that incorporates a bias tee circuit, an integrated
thermoelectric cooler (TEC), a thermistor, and a back facet monitor
photodiode. The EC48 provides substantially lower dispersion penalty
and lower chirp than a directly modulated DFB. The wavelength stability
is assured by design, eliminating the need for wavelength lockers and
complex feedback control circuits.
Applications
ꢀMetro and Long Haul DWDM,
100 GHz spaced networks
ꢀSONET/SDH OC-48/STM16 ring
and meshed applications
ꢀ Drop-side of DWDM long-haul
transport equipment
Performance Highlights
ꢀCATV networks
Min
Typical
Max
Units
ꢀOptical Test and
Instrumentation
Optical Output Power
3
-
-
mW
ꢀMicrowave Photonics
ꢀSensors
Case Operating Temperature Range
Center Wavelength ( 100 GHz ITU Grid )
-15
-
-
+75
°C
1527
1570
nm
Features
Spectral Width ( - 20 dB )
Optical Isolation
-
-
-
.10
-
nm
dB
ꢀITU wavelengths across C-
band
30
ꢀ100 GHz channel spacing
ꢀSONET/SDH OC-48/STM16 ring
Side Mode Suppression Ratio
and meshed applications
CW
35
30
-
-
-
-
dB
dB
ꢀLow dispersion provides up to
200-km, 400-km, and 650-km
reach in SMF-28 fiber
Dynamic
High Frequency Cutoff
3.5
-
-
GHz
ꢀLow transient chirp provides
unique narrow dynamic
spectrum
Extinction Ratio
EOL
8.5
9.5
-
-
-
dB
dB
BOL
10
ꢀExcellent long-term
wavelength stability eliminates
the need for a wavelength
locker
See following pages for complete specifications and conditions.
For more information on this and other products:
Contact Sales at Ortel 626-293-3400, or visit www.emcore.com.