Alcatel 1935 LMI
High power CW laser
C and L bands
With integrated wavelength monitoring
Description
The Alcatel 1935 LMI contains an
Alcatel SLMQW DFB laser and is
designed for use with external
modulation. This module is
designed to high power DWDM
applications with a spacing
between the channels down to
50 GHz without using external
locker. The module integrates a
wavelength monitoring function in
order to allow wavelength
stabilization over product lifetime.
Despite of this new feature, the
package and the pinout of the new
product stays compatible with the
previous series (Alcatel 1905LMI)
without the integrated wavelength
monitoring function, in order to
avoid a complete redesign of
existing boards. The choice of an
analog output for the control signal
will leave the freedom for the user
to lock the wavelength either with a
digital or an analog circuit.
The module incorporates also a
polarization maintaining fiber
pigtail, thermoelectric cooler,
precision thermistor, and optical
isolator for stable operation under
all conditions.
Features
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Integrated Fabry-Perot Etalon
wavelength monitoring
(replaces external lockers)
Up to 20mW output power
50 GHz channels spacing
available
High reliability InGaAsP Buried
Ridge Structure laser chip with
outstanding long term
wavelength stability
Optimized for use with LiNbO3
external modulator
Internal optical isolator
Internal TEC and power
monitoring photodiode
Polarization Maintaining Fiber
PMF pigtail
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Applications
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Ultra Long Haul DWDM
SONET/SDH transmission
system
DWDM submarine terminal
Instrumentation
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