DFB Butterfly Laser Diode

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Description

2MW-24MW 1310nm DFB butterfly laser diode produce laser beams with a stable wavelength.It can deliver high output power up to a maximum of 24MW.The module is composed of a built-in or external opto-isolator,14-pin butterfly package with thermo-electric cooler,single mode fiber butterfly,900μm tight tube,and FC/APC connector.The length of fiber butterfly is 1.00±0.10m.With a low threshold current,the device can be supplied with a built-in or external modem.

Applications
◆ CATV forward-path
◆ 1310nm broadcast and point-to-point applications

Absolute Maximum Ratings

Parameter	Symbol	Condition	Min.	Max.	Unit
Operating Case Temperature	Tc	I=Iop	-20	80	°C
Storage Temperature	Tstg	-	-40	85	°C
Laser Forward Current	If	-	-	150	mA
Laser Reverse Bias	Vr	-	-	2	V
Photodiode Reverse Bias	Vrpd	-	-	10	V
TEC Current	Itec	-20 °C < Tc < +65 °C, Top=25 °C If=100 mA	-2	+2	A
TEC Voltage	Vc		-2.5	+2.5	V
ESD	-	ESD-HBM:R=1500 ohm, C=100 pF	-500	+500	V
Lead Solder Temperature	-	-	-	260	°C
Lead Soldering Time	-	-	-	10	s
Fiber Bend Radius	-	-	30	-	mm
Fiber Yield Strength	-	-	-	1	kgf

Optical & Electrical Characteristics

Parameter	Symbol	Test Conditions	Min.	Typ.	Max.	Unit
Center Wavelength	λc	CW	1300	1310	1320	nm
Spectral Width (-3 dB)	Δλ	CW	-	0.5	1	nm
Optical Output Power	Po	CW, TL=25 °C	-	-	32	mW
Optical Isolation	IS	T=25 °C	30	35	-	dB
Side-mode Suppression Ratio	SMSR	CW	35	-	-	dB
Threshold Current	Ith	TL=25 °C	-	10	15	mA
Operating Current	Iop	CW	-	-	100	mA
Forward Voltage	VF	CW	-	1.2	2.0	V
Monitor Current	Imon	Vrpd=5 V	100	-	1500	μA
Monitor Dark Current	ID	Vrpd=5 V	-	-	100	nA
Operating Temperature	T	-	-20	-	60	°C
Tracking Error	γ	TE=10log(Po(Tc)/Po(25°C)	-1	-	1	dB
Thermistor Resistance	Rt	T=25 °C	9.5	-	10.5	KΩ
Thermistor B Constant	B	T=25 °C		3900		K
TEC Current	IC	ΔΤ=40°C	-	-	1.0	A
TEC Voltage	VC	ΔΤ=40°C	-	-	2.0	V
Frequency Range	F	-	45	-	2500	MHz
Cut-off Frequency	Fc(-3dB)	If=Iop	4	-	-	GHz
RIN	Nr	CW, If=Iop, f=2.5GHz	-	-155	-150	dB/Hz
Carrier Noise Ratio	CNR	Note 1	51	-	-	dB
Composite Second Order	CSO		-	-	-57	dBc
Composite Triple Beat	CTB		-	-	-65	dBc

Pin Description

1	Thermistor	8	Ground
2	Thermistor	9	Ground
3	LD (N) bias	10	Ground
4	Detector (P)	11	LD (P), ground
5	Detector (N)	12	LD (N), RF modulation
6	TEC (+)	13	LD (P), ground
7	TEC (-)	14	Ground

Important Notice

Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.