s OL4121N-120 and OL4121N-140 s ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

2

Oki Semiconductor

ELECTRICAL CHARACTERISTICS

Exceeding these maximum ratings could cause immediate damage or lead to permanent deterioration of the device.

Absolute Maximum Ratings (ambient temperature Ta = 25°C unless otherwise noted)

Parameter

Symbol

Ratings

Units

Fiber Output Power

OL4121N-120

Pf

130

mW

OL4121N-140

160

mW

Laser Diode Forward Current

OL4121N-120

750

mA

OL4121N-140

800

mA

Laser Diode Reverse Voltage

2V

Photo Diode Reverse Voltage

15

V

Operating Temperature Range

Topr

-20 to +65

°C

Storage Temperature Range

Tstg

-40 to +70

°C

Optical and Electrical Characteristics (Ta = 25°C)

Parameter

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Threshold Current

---

---

---

60

mA

Laser Diode Operating Current

OL4121N-120

Pf = 120 mW

---

---

600

mA

OL4121N-140

Pf = 140 mW

700

mA

Laser Diode Operating Voltage

Pf = 120 / 140 mW

---

---

2.5

V

Center Wavelength

λc

Pf = 120 / 140 mW

1460

---

1490

nm

RMS Spectral Width

σ

Pf = 120 / 140 mW (RMS)

---

---

10

nm

Tracking Error

TER

---

---

+/-1.0

dB

PD Dark Current

---

---

100

nA

Monitor Current

Im

100

---

---

µA

Thermoelectric Cooler Capacity

∆T

Pf = 120 / 140 mW

40

---

---

°C

Thermoelectric Cooler Current

∆T = 40°C, Pf = 120 / 140 mW

---

---

1.5

A

Thermoelectric Cooler Voltage

∆T = 40°C, Pf = 120 / 140 mW

---

---

4.0

V

Thermistor Resistance

Rth

---

9

---

11

K

Ω

Fiber Pigtail Specifications

Parameter

Specifications

Units

Type

SM

---

Mode Field Diameter

10 +/-1

µm

Cladding Diameter

125 +/-2

µm

Jacket Diameter

900

µm

Length

1.0 (Minimum)

m

Connector

FC

---