527

Limits

Parameter

Symbol

Test Condition

Min.

Max.

Units

Laser Forward Current

If

DC

120

mA

Laser Reverse Voltage

Vlr

DC

2

V

Photodiode Reverse Voltage

Vr

DC

20

V

Photodiode Forward Current

Ipf

DC

1

mA

Operating Temperature

Tc

Temperature measured at case

–40

+85

°C

Storage Temperature

Ts

–40

+85

°C

Relative Humidity

RH

noncondensing

%RH

Fiber Pull Strength

Three times; 10 sec.

10

N

Mechanical Shock

MIL-STD-883D, Method 2002,

500

G

Condition A

Vibration

MIL-STD-883D, Method 2007,

20

G

Condition A

Absolute Maximum Ratings

Absolute limiting (maximum) ratings mean that no catastrophic damage will occur if the product is subjected to these ratings for short periods,

provided that each limiting parameter is in isolation and all other parameters have values within the performance specification. It should not be

assumed that limiting values of more than one parameter can be applied to the product at the same time.

Performance Specifications

LSA2825

LSA3821

Parameter

Symbol

Test Condition

Min.

Max.

Units

LASER

CW, Tc = –40

°C to +85°C, Po as

noted below unless otherwise

stated

Rated Optical Power

Po

CW

1.0

mW

Threshold Current

Ith

Tc = +25

°C

3.5

10

mA

Threshold Current

Ith

1

30

mA

Slope Efficiency

η

Tc = +25

°C30

80

µW/mA

Drive Current above Ith,

Id

Tc = +25

°C

12.5

33.3

mA

Tc = –40

°C to +85°C10

55

mA

Forward Voltage

Vf

1.6

V

Center Wavelength

λ

Tc = +25

°C

1286

1336

nm

Tc = –40

°C to +85°C

1260

1360

nm

Wavelength/Temperature

∆λ/∆T

0.4

nm/

°C

Coefficient

Spectral Width

σ

One sigma, RMS

2.5

nm

MONITOR PHOTODIODE

Tc = +25

°C, Vr = 5 V

Photocurrent

Im

200

1000

µA

Dark Current

Id

Po = 0

µW20

nA

Capacitance

C

1 MHz

10

pF

Tracking Error

DP

Im = Im (Po, +25

°C)

–1

+1

dB

Tc + –40

°C to + 85°C

for Im = Im (Po, +25

°C)