514

Coaxial Pigtailed Laser Module

Preliminary Technical Data

LST2425X, LST3421X

Features

• Compact Coaxial Package

• Strained Multi Quantum

Well Distributed Feedback

(DFB) Laser Chip

• Low Thresholds Current and

Operating Currents

• Wide Operating Tempera-

ture -40

• Excellent Wavelength

Stability with Temperature

~0.1 nm/

• Narrow Line Width

<1 nm @ -20 dB

• Side Mode Suppression

Ratio >-30 dB

• Modulation Capability up to

622 Mb/s

• Convenient Variety of

Pinout and Mounting Flange

Options

Applications

• Telecommunications

• Fiber in the Loop

• Inter/Intra Office

• SONET/SDH

• Datacommunications

• Switches

Description

Products in the LST242X family

are compact coaxial pigtailed

DFB laser transmitters, operating

in the 1300 nm wavelength

region and coupling light to

single mode fiber. They are

designed for use in short,

medium and long distance

networks with bit rates up to

622 Mb/s.

The device features a high

reliability SMQW-DFB laser diode

and rear facet monitor photo-

diode. These are electrically

connected to four pins in an

industry-standard configuration.

Environmental performance is

designed to be compatible with

the requirements of Bellcore’s

TA-NWT-000983 document.

Options within the LST242X

family offer pinouts and pin

rotational orientations designed

to match existing products

available on the market. We also

offer a comprehensive range of

alternative mounting flanges

including a dual in line option.

If the specific arrangement or

performance you require is not

listed, please contact your local

representative as our highly

flexible design and manufacturing

processes allow both physical and

electro-optical customization to

meet your needs.

Preliminary Product Disclaimer

This preliminary data sheet is provided to assist you in the evaluation of engineering samples of the product which is under development

and targeted for release during 1997. Until Hewlett-Packard releases this product for general sales, HP reserves the right to alter prices,

specifications, features, capabilities, function, manufacturing release dates, and even general availability of the product at any time.

Laser Safety Warning

This device is a Class IIIb (3b) Laser Product. It may emit invisible laser radiation if operated with the fiber pigtail disconnected. To avoid

possible eye damage do not look into an unconnected fiber pigtail during laser operation. Do not exceed specified operating limits.

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