This document summarizes the PSpice model and simulation results for a Hitachi HL6714G GaAIAs laser diode. It includes the component parameters, optical output power characteristics with variations in forward current, an evaluation circuit diagram, and comparison graphs showing good agreement between measured and simulated results for output power at different forward currents and monitor currents.

1. Device Modeling Report
COMPONENTS: GaAIAs Laser Diode
PART NUMBER: HL6714G
MANUFACTURER: HITACHI
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

2. PSpice model
Model description
parameter
IS Saturation Current
N Emission Coefficient
RS Series Resistance
IKF High-injection Knee Current
CJO Zero-bias Junction Capacitance
M Junction Grading Coefficient
VJ Junction Potential
ISR Recombination Current Saturation Value
BV Reverse Breakdown Voltage(a positive value)
IBV Reverse Breakdown Current(a positive value)
TT Transit Time
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

3. Optical Output Power vs. Forward current characteristics
Circuit simulation result
10mV
0V
0A 100mA
V(X_U1.op)
I(I1)
Evaluation circuit
U1
DHL6714G 0
R1
50
0Adc V1
I1
0Vdc
0 0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

4. Comparison graph
Circuit simulation result
Simulation Result
IF [mA]
Po [mW] Measurement Simulation Error (%)
1.000 35.000 35.000 0.000
2.000 36.200 36.190 0.028
5.000 39.500 39.490 0.025
10.000 45.000 45.000 0.000
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

5. Monitor Current vs. Optical Output Power characteristics
Circuit simulation result
1.0mA
0A
0V 10mV
I(V1)
V(X_U1.op)
Evaluation circuit
U1
DHL6714G 0
R1
50
0Adc V1
I1
0Vdc
0 0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

6. Comparison graph
Circuit simulation result
Simulation Result
Po [mW]
Imon [mA] Measurement Simulation Error (%)
0.100 1.250 1.250 0.000
0.200 2.500 2.500 0.000
0.500 6.250 6.250 0.000
0.800 10.000 10.000 0.000
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005