1A448 데이터 시트보기 (PDF) - Mitel Networks

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1A448

VCSEL Laser Diode (Datacom)

Mitel Networks 

PRODUCT INFORMATION

840nm

1A448

VCSEL Laser Diode

Datacom

This Vertical Cavity Surface-

Emitting Laser is designed for Fibre

Channel, Gigabit Ethernet and ATM

applications. For eye safety, the opti-

cal power is attenuated to comply

with IEC Laser Class 1 requirements.

Ø4.7

Ø1.5

0.6

3.7

14

0.4

CASE

ANODE

CATHODE

Optical and Electrical Characteristics (25°C Case Temperature)

PARAMETER

SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION

Fiber-Coupled Power

1A448

1A448A

Pfiber 100

160

␮W IF =12mA (Note 1)

Optical Power

Po

400 ␮W IF =12mA (Note 2)

Slope Efficiency

(dPo/dIF)

Bandwidth

(3dBel )

␩

50

mW/A IF =12mA

fc

2

GHz IF =12mA

Peak Wavelength

␭p 830 840 860 nm IF =12mA

Spectral Width (FWHM)

⌬␭

0.5 1 nm IF =12mA

Forward Voltage (Fig.5)

VF

1.9 2.2 V IF =12mA

Threshold Current

Ith

3.5 6 mA

Relative Intensity Noise RIN

-130

dB/Hz IF =12mA, f=1 GHz

Note 1: Fiber: 50/125 Graded Index, NA=0.2 or 62.5/125 Graded Index, NA=0.275.

Note 2: Complies with laser Class 1 when operated at max 12 mA; Class 3 above 12 mA.

Absolute Maximum Ratings

PARAMETER

Storage Temperature

Operating Temperature (derating: Fig.4)

Electrical Power Dissipation (derating: Fig.4)

Continuous Forward Current (fр10 kHz)

Peak Forward Current (duty cycleр50%, fу1 MHz)

Reverse Voltage

Soldering Temperature (2mm from the case for 10 sec)

SYMBOL

Tstg

Top

Ptot

IF

IFRM

VR

Tsld

LIMIT

-55 to +125ЊC

0 to +70ЊC

35 mW

15 mA

25 mA

1.5 V

260ЊC

2.5

5.4

BOTTOM VIEW

The chip is isolated from the case.

TO-46 Package With Lens

Class 1 Laser Product

13534.11 & 12 1999-04-01

Thermal Characteristics

PARAMETER

SYMBOL MIN. TYP. MAX.

Thermal Resistance - Infinite Heat Sink Rthjc

400

Thermal Resistance - No Heat Sink

Rthja

700

Temp. Coefficient -Wavelength

Optical Power - Variation 0 to 70ЊC

d␭ /dTj

⌬P

0.06

Ϯ0.7

Threshold Current - Variation 0 to 70ЊC ⌬Ith

Ϯ0.6

UNIT

ЊC/W

ЊC/W

nm/ЊC

dB

mA

Europe: Tel (46) 8 58 02 45 00 Fax (46) 8 58 02 01 10

Tel (44) 1291 436180 Fax (44) 1291 436771

America: Tel 1-800-96MITEL Fax (613) 592-6909

Asia:

Tel (65) 293 5312 Fax (65) 293 8527

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