1550nm DFB Pigtailed Components

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Features
Built-in optical isolator
Low capacitance and low dark current
High stability of DFB lasers die
Low threshold current, low operating current
Integrated high isolation, low insertion loss

Applications

CATV Reverse Transmission
Other Analog or Digital Optical Transmission

Optical & Electrical Characteristics

Parameter	Symbol	Min.	Typ.	Max.	Unit	Test Condition
Rated Power	Po	1	-	4	mW	Ith+20mA
Slope Efficiency	SE	-	-	0.2	mW/mA	-
Threshold Current	Ith	-	10	15	mA	-
Forward Voltage Drop	Vop	-	1.0	1.2	V	CW, Ith+20mA
Cent Wavelength	λc	1540	1550	1560	nm	-
Spectrum Width(-20dB)	Δλ	-	0.5	1	nm	Ith+20mA
Side-mode Suppression Ratio	SMSR	35	-	-	dB	-
Bandwidth	Bw	2.5	6	-	GHz	-
Monitor Current	Im	100	-	900	uA	CW, Ith+20mA
Dark Current of Monitor	Id	-	-	100	nA	5V
Optical Isolation(Single stage)	ISO	35	40	-	dB	-
Optical Isolation(Double stage)	ISO	45	50	-	dB	-
Return Loss	RL	-	-	-45	dB	-
Analog Characteristic index
Relative Intensity Noise	RIN	-	-155	-150	dB/Hz	-
RF Bandpass Flatness	BF	-	±1.5	-	dB	-
Third-order Distortion	IMD3	-	-55	-	dBc	-
Carrier Noise Ratio	CNR	51	-	-	dB	Note 1
Composite Second Order	CSO	-	-	-57	dBc
Composite Triple Beat	CTB	-	-	-65	dBc

Note 1: ① If=Iop, Optical Modulation, Index=3.2%/channel (minimum),60 PAL-D unmodulated carries (47 to 550MHz), 10km singlemode fiber, -1dBm received power, Receiver responsivity=0.85A/W.
② If=Iop, Optical Modulation Index=3.2%/channel (minimum), CNR, CSO, CTB tested value at worst case over all test frequencies. NTSC 120ch., 10km singlemode fiber, -1dBm received power, Receiverresponsivity=0.85A/W

Absolute Maximum Ratings

Parameter	Symbol	Min.	Max.	Unit	Test Condition
Storage Temperature	Tstg	-40	100	℃	-
Operating Temperature	Top	-40	85	℃	-
Forward Current(LD)	If(LD)	-	150	mA	-
Reverse Voltage(LD)	Vr(PD)	-	2	V	CW
Forward Current(PD)	If(LD)	-	2	mA	-
Reverse Voltage(PD)	Vr(PD)	-	15	V	CW
Soldering Temp	-	-	260	℃	-
Soldering Time	-	-	10	S	S

PIN Definition

Drawing

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