TO56 LD (TOLD) Series

Product Description: The T056 LD laser diodes are uncooled multi-quantum-well DFB (Distributed Feedback) laser diodes for 2.5Gbps and 10Gbps transmission at 1310/1490/1550nm. The laser diodes are packaged in a standard TO56 coaxial package with a photodiode for optical power monitor. Among these laser diodes, four products at 1270nm, 1290nm, 1310nm and 1330nm are suitable for GR-468 qualified, and in compliance with RoHS directives.

Applications:

• 2.5/10Gbps fiberoptic transmission
• Optical communication transceivers
• Storage area networks
• Fiberoptic sensors
• Fiberoptic test and measurement

Features:

• 1310/1490/1550nm band wavelengths
• Low threshold and low operating current
• High efficiency and high output power 
• Wide operation temperature range
• High reliability
• T056 standard package

 

 

Absolute Maximum Rating
Symbol	Parameter	Ratings	Unit
If	Forward Current(Laser Diode)	150	mA
Vrl	Reverse Voltage(Laser Diode)	2	V
Ifd	Forward Current( Photo Diode)	2	mA
Vrd	Reverse Voltage(Photo Diode)	20	V
Tc	Case Temperature	-40 to + 85	℃
Tstg	Storage Temperature	-40 to + 85	℃
Stemp	Stemp Soldering Temperature(<10s)	260	℃

 

 

Optical and Electric Specifications T=25°C)
Parameter	Symbol	Test Conditions	Limits			Unit
			Min.	Typ.	Max.
Threshold Current	Ith	CW	–	7	15	mA
		CW,TC=85°C	–	30	40
Output Power	Po	CW, If=Ith+20mA	–	6	–	mW
		CW, If=Ith+20mA, T=85°C	–	3	–
Slope Effciency	η	CW, If=Ith+20mA	0.3	0.36	–	mW/mA
Operating Voltage	Vop	CW, If=Ith+20mA	–	1.1	1.5	V
Peak Wavelength	λp	CW. If=Ith+20mA W, If=Ith+20mA, T=-40 to +85°C	1300	1310	1320	nm
Wavelength/Temperature Coefficient	Dλ/dλ	T=-40 to +85°C	–	0.09	–	nm/℃
Dynamic Spectral Width	Δλ	2.5GHz at -20dB	–	0.32	–	nm
Side Mode Suppression Ratio	SMSR	CW, If=Ith+20mA, T=-40 to +85°C	35	40	–	dB
Rise time/Fall time	tr/tf	2.5Gbps, Ipp=40mA, Ib=Ith 20%-80%	–	80	120	ps
Monitor Current (PD)	Im	CW, If=Ith+20mA, VRPD=1V, RL=10	0.1	0.3	1.0	mA
Dark Current (PD)	Id	VRPD=5V	–	–	1.0	μA
Capacitance (PD)	Ct	VRPD=5V, f=1MHz	–	10	20	pF
Focus Length	F	Aspherical	7.0	7.5	8.0	mm

 

 

Mecahnical Dimensions

Aspherical Lens:

Ball Lens:

Flat Window:

PIN Definition:

Pin Assignment:

Pin No.	Type A	Type B	Type C
1	LD Anode(Case)	Case	LD Anode(Case)
2	LD Cathode (+)	LD Cathode (+)	PD Anode(-)
3	PD Anode (-)	LD Anode/ PD Cathode (+)	LD Cathode(+)
4	PD Cathode (+)	PD Anode (-)	PD Cathode(+)

 

TO-
TO-	LD Type	Wavelength	Data	Lens Cap	Pin Out	Output Power
	F:FP	27:1270nm	01:1.25G	A :Aspherical Lens	A: Type A	05:5mW
	D:DFB	29:1290nm	02:2.5G	B:Ball Lens	B: Type B	08:8mW
	S:SLED	…	10:10G	F: Flat Window	C: Type C	10:10mW
		61:1610nm
Example of Ordering Form: TO-D3102AB10-01
TO-	D	31	02	A	B	10
	DFB	1310m	2.5G	Aspherical Lens	Type B	10mW