JAN06 (2/5)

Mitsubishi Electric Corporation reserves the right to make changes to the products or information contained herein

without notice. No liability is assumed as a result of their use or application.

MITSUBISHI CONFIDENTIAL

MITSUBISHI (OPTICAL DEVICES)

FU-48SDF-x37M9yF

1.3

μm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL

ELECTRICAL/OPTICAL CHARACTERISTICS

(Tld=25°C,Tc=25°C, unless otherwise noted)

Limits

Parameter

Symbol

Condition

Min.

Typ.

Max.

Units

-37M92

-37M96

-

10

20

Threshold Current

Ith

CW

-37M98

-

15

25

mA

-37M92

-

40

55

-37M96

-

43

70

Operating Current

Iop

CW

-37M98

-

54

85

mA

-37M92

-

30

40

-37M96

-

33

50

Modulation Current

Imod

Imod = Iop-Ith

-37M98

-

39

60

mA

Operating Voltage

Vop

CW, If = Iop (Note1)

-

1.3

1.8

V

-37M92

-

4

-

-37M96

-

8

-

Output Power from Fiber

End

Pf

CW, If = Iop

-37M98

-

12

-

mW

Central Wavelength

λc

CW, If = Iop

1290

1310

1330

nm

Side Mode Suppression

Ratio

Sr

CW, If = Iop

30

35

-

dB

fc(-1.5dB)

If = Iop

2

3

-

Cut-off Frequency

fc(-3dB)

If = Iop

3

4

-

GHz

Frequency response ripple

ΔS21

If = Iop, f = 1900~2100MHz

-0.5

-

0.5

dB

3

D3

2-tone test

(Note 2) , f1,f2 =

2000±3MHz,

m

=

21%/carrier,

If(average) = Iop

-

-75

-65

dBc

RIN (Note 3)

Nr

CW, If = Iop, f = 2000MHz (Note 2)

-

-160

-155

dB/Hz

Tracking Error(Note 4)

Er

Tc = -20~65°C, APC, ATC

-

0.3

0.5

dB

-37M92

0.1

0.13

0.4

-37M96

0.16

0.24

0.4

Differential Efficiency

η

If(average) = Iop

-37M98

0.2

0.31

0.45

mW/m

A

Monitor Current

Imon

CW, If = Iop, Vrd = 5V

0.1

-

3

mA

Dark current( PD )

Id

Vrd = 5V

-

0.1

1

mA

Capacitance ( PD )

Ct

Vrd = 5V, f = 1MHz

-

10

20

pF

Isolation

Iso

Tc = 0 to 65°C

25

37

-

dB

Note 1. If : LD forward current

Note 2. Optical return loss of the connectors should be greater than 40dB in order to get the specified performance.

Note 3. Relative intensity noise does not include shot noise of receiver.

Note 4. Er = MAX |10* log (Pf/Pf(25°C))|

THERMAL CHARACTERISTICS

(Tld=25

°C,Tc=-20~+65°C)

Limits

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Thermistor resistance

Rth

Tld=25°C

9.5

10

10.5

K

Ω

B constant of thermistor

resistance

B

-

-

3950

-

K

Cooling capacity

ΔT

Tc=65°C

40

-

-

K

Cooler current

Ipe

ΔT=40K

-

0.6

1

A

Cooler voltage

Vpe

ΔT=40K

-

1.2

2

V