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Wavelength Laser Source Module

The WLS-XXXXX2114-01 DFB laser modules are designed for forward-path CATV applications, especially digital transmission using Quadrature Amplitude Modulation (QAM). The modules are designed to incorporate high output power while maintaining high linearity. The devices feature standard pin assignments (compatible with OC-48).

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1.Product Description

PN：WLS-XXXXX2114-01

The WLS-XXXXX2114-01 DFB laser modules are designed for forward-path CATV applications, especially digital transmission using Quadrature Amplitude Modulation (QAM). The modules are designed to incorporate high output power while maintaining high linearity. The devices feature standard pin assignments (compatible with OC-48).

These devices offer excellent performance in directly-modulation QAM transmission, offering considerable cost savings over externally-modulated solutions. The combination of high performance and very reasonable price make these modules the most cost-effective CATV transmitter solutions in the industry.

Applications:

l1550-nm broadcast and point-to-point applications

lDigital CATV transmission

lSensing

lTesting system

Features:

lMeets GR 468 reliability specifications

2.Performance Specifications

2.1 Absolute Maximum Ratings

Parameter	Symbol	Condition	Min.	Max.	Unit
Operating Case Temperature	Tc	I=Iop	-20	65	°C
StorageTemperature	Tstg	--	-40	85	°C
Laser Forward Current	I_f	--	--	120	mA
Laser Reverse Bias	V_r	--	--	2	V
Photodiode Reverse Bias	V_rpd	--	--	10	V
TEC Current	Itec	-20 °C < Tc <+65 °C, Top=25 °C I_f=100 mA		1.5	A

2.2 Electrical and Optical Characteristics

Parameters are over operating temperature range unless otherwise noted.

Parameters	Symbol	Test Conditions	Min	Typ	Max	Unit
Center Wavelength*	λc	P_L= P_o, CW, Tset = 20C - 35C	1530	--	1560	nm
Optical Output Power	Po	CW, T_L= Tset	8	--	--	mW
Optical Isolation	I_S	T=25 °C	30	--	--	dB
Side-mode Suppression Ratio	SMSR	P_L= P_o,	30	--	--	dB
Linewidth	FWHM	P_L= P_o, CW	--	6	10	MHz
Chirp	Δλ/Δf	P_L= P_o, 500 MHz	40	--	120	MHz/mA
Threshold Current	I_th	T_L=25 °C	--	15	20	mA
Operating Current	I_op	P_L= P_o,	--	--	120	mA
Forward Voltage	V_F	P_L= P_o,		1.2	1.9	V
Monitor Current	I_mon	V_rpd=5 V	9	--	150	μA/mW
Monitor Dark Current	I_D	V_rpd=5 V	--	--	200	nA
Operating Case Temperature	T		-20	--	65	°C
Tracking Error	ᵞ	I_mon=const, γ=10 log (Po/10 mW) [dB]	-0.5	--	0.5	dB
Thermistor Resistance	R_t	T=25 °C	9.5	--	10.5	KΩ
Thermistor B Constant	B	T=25 °C	--	3900	--	K
TEC Current	I_C	ΔT=40 °C	--	--	1.5	A
TEC Voltage	V_C	ΔT=40 °C	--	--	2.0	V

*See available wavelengths from Ordering Options. DWDM wavelength set by laser sub-mount temperature.

2.3 RF Characteristics

Parameter	Symbol	Test Conditions	Min.	Typical	Max.	Unit
Input impedance	Z_IN	nominal		25		Ω
Frequency Range	F	--	45	-	3000	MHz
Frequency Response	\|S₂₁\|	If=Iop 45 MHz-870 MHz T=25 °C	--	±0.5	--	dB
Frequency Response	\|S₂₁\|	If=Iop 45 MHz-3000 MHz T=25 °C	--	±1.0	--	dB
RF return loss	S₁₁	50 – 870 MHz, P=P_F, @ 50Ω,	6	7		dB
Relative Intensity Noise	RIN	CW, P_L= P_o, Note 1	--	--	-155	dB/Hz
2ndOrder Intermodulation	IMD2	Note 2, 42 MHz, @ f2-f1	--	--	-44	dBc
3rdOrder Intermodulation	IMD3	Note 2, 511.25 MHz, @ 2f1-f2	--	--	-53	dBc

Note 1: Test condition: PL= Po, f = 500 MHz, Optical reflection<-40 dB, 0 km fiber.

Note 2: Test condition: Po ≥ 5 mW, 2 unmodulated carriers (f1=553.25, f2=595.25), 35% OMI/ carrier, 50 km zero dispersion single mode fiber, optical reflection <-40 dB.

3.Pin Information & Electrical Schematics:

1	Thermistor
2	Thermistor
3	DC Laser Bias (-)
4	MPD Anode (-)
5	MPD Cathode (+)
6	Thermoelectric Cooler (+)
7	Thermoelectric Cooler (-)
Case Ground
9	Case Ground
10	Case Ground
11	Laser Common (+), Case Ground
12	Laser Modulation (-)
13	Laser Common (+), Case Ground
14	Case Ground

图片11.png

4.Outline Diagram:

Dimensions are in millimeters

图片12.png

5.测试报告/Test Report:

每个产品需附上对应的测试报告，包含以下参数：

-光输出功率，中心波长，P-I曲线，PIN脚定义等。

Test report will be attached with each product. The following characteristic test data should be included：-Optical Output Power, Center Wavelength, P-I curve, Pin Assignments.

6.产品包装/Packaging:

黑色防静电塑料盒真空包装/ Black vacuumize anti-static plastic package.

Ordering Option*	Frequency (THz)	Power (mW)	Wavelength (nm)
WLS-C19102114-01	191.9	10	1562.23
WLS-C20102114-01	192.0	10	1561.42
WLS-C21102114-01	192.1	10	1560.61
WLS-C22102114-01	192.2	10	1559.79
WLS-C23102114-01	192.3	10	1558.98
WLS-C24102114-01	192.4	10	1558.17
WLS-C25102114-01	192.5	10	1557.36
WLS-C26102114-01	192.6	10	1556.55
WLS-C27102114-01	192.7	10	1555.75
WLS-C28102114-01	192.8	10	1554.94
WLS-C29102114-01	192.9	10	1554.13
WLS-C30102114-01	193.0	10	1553.33
WLS-C31102114-01	193.1	10	1552.52
WLS-C32102114-01	193.2	10	1551.72
WLS-C33102114-01	193.3	10	1550.92
WLS-C34102114-01	193.4	10	1550.12
WLS-C35102114-01	193.5	10	1549.32
WLS-C36102114-01	193.6	10	1548.51
WLS-C37102114-01	193.7	10	1547.72
WLS-C38102114-01	193.8	10	1546.92
WLS-C39102114-01	193.9	10	1546.12
WLS-C40102114-01	194.0	10	1545.32
WLS-C41102114-01	194.1	10	1544.53
WLS-C42102114-01	194.2	10	1543.73
WLS-C43102114-01	194.3	10	1542.94
WLS-C44102114-01	194.4	10	1542.14
WLS-C45102114-01	194.5	10	1541.35
WLS-C46102114-01	194.6	10	1540.56
WLS-C47102114-01	194.7	10	1539.77
WLS-C48102114-01	194.8	10	1538.98
WLS-C49102114-01	194.9	10	1538.19
WLS-C50102114-01	195.0	10	1537.40
WLS-C51102114-01	195.1	10	1536.61
WLS-C52102114-01	195.2	10	1535.82
WLS-C53102114-01	195.3	10	1535.04
WLS-C54102114-01	195.4	10	1534.25
WLS-C55102114-01	195.5	10	1533.47
WLS-C56102114-01	195.6	10	1532.68
WLS-C57102114-01	195.7	10	1531.90
WLS-C58102114-01	195.8	10	1531.12
WLS-C59102114-01	195.9	10	1530.33
WLS-C60102114-01	196.0	10	1529.55
WLS-C61102114-01	196.1	10	1528.77
WLS-C62102114-01	196.2	10	1527.99
WLS-C19082114-01	191.9	8	1562.23
WLS-C20082114-01	192.0	8	1561.42
WLS-C21082114-01	192.1	8	1560.61
WLS-C22082114-01	192.2	8	1559.79
WLS-C23082114-01	192.3	8	1558.98
WLS-C24082114-01	192.4	8	1558.17
WLS-C25082114-01	192.5	8	1557.36
WLS-C26082114-01	192.6	8	1556.55
WLS-C27082114-01	192.7	8	1555.75
WLS-C28082114-01	192.8	8	1554.94
WLS-C29082114-01	192.9	8	1554.13
WLS-C30082114-01	193.0	8	1553.33
WLS-C31082114-01	193.1	8	1552.52
WLS-C32082114-01	193.2	8	1551.72
WLS-C33082114-01	193.3	8	1550.92
WLS-C34082114-01	193.4	8	1550.12
WLS-C35082114-01	193.5	8	1549.32
WLS-C36082114-01	193.6	8	1548.51
WLS-C37082114-01	193.7	8	1547.72
WLS-C38082114-01	193.8	8	1546.92
WLS-C39082114-01	193.9	8	1546.12
WLS-C40082114-01	194.0	8	1545.32
WLS-C41082114-01	194.1	8	1544.53
WLS-C42082114-01	194.2	8	1543.73
WLS-C43082114-01	194.3	8	1542.94
WLS-C44082114-01	194.4	8	1542.14
WLS-C45082114-01	194.5	8	1541.35
WLS-C46082114-01	194.6	8	1540.56
WLS-C47082114-01	194.7	8	1539.77
WLS-C48082114-01	194.8	8	1538.98
WLS-C49082114-01	194.9	8	1538.19
WLS-C50082114-01	195.0	8	1537.40
WLS-C51082114-01	195.1	8	1536.61
WLS-C52082114-01	195.2	8	1535.82
WLS-C53082114-01	195.3	8	1535.04
WLS-C54082114-01	195.4	8	1534.25
WLS-C55082114-01	195.5	8	1533.47
WLS-C56082114-01	195.6	8	1532.68
WLS-C57082114-01	195.7	8	1531.90
WLS-C58082114-01	195.8	8	1531.12
WLS-C59082114-01	195.9	8	1530.33
WLS-C60082114-01	196.0	8	1529.55
WLS-C61082114-01	196.1	8	1528.77
WLS-C62082114-01	196.2	8	1527.99

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Wavelength Laser Source Module

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Wavelength Laser Source Module

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1.Product Description

PN：WLS-XXXXX2114-01

Applications:

l1550-nm broadcast and point-to-point applications

lDigital CATV transmission

lSensing

lTesting system

Features:

lMeets GR 468 reliability specifications

2.Performance Specifications

2.1 Absolute Maximum Ratings

Parameter	Symbol	Condition	Min.	Max.	Unit
Operating Case Temperature	Tc	I=Iop	-20	65	°C
StorageTemperature	Tstg	--	-40	85	°C
Laser Forward Current	I_f	--	--	120	mA
Laser Reverse Bias	V_r	--	--	2	V
Photodiode Reverse Bias	V_rpd	--	--	10	V
TEC Current	Itec	-20 °C < Tc <+65 °C, Top=25 °C I_f=100 mA		1.5	A

2.2 Electrical and Optical Characteristics

Parameters are over operating temperature range unless otherwise noted.

Parameters	Symbol	Test Conditions	Min	Typ	Max	Unit
Center Wavelength*	λc	P_L= P_o, CW, Tset = 20C - 35C	1530	--	1560	nm
Optical Output Power	Po	CW, T_L= Tset	8	--	--	mW
Optical Isolation	I_S	T=25 °C	30	--	--	dB
Side-mode Suppression Ratio	SMSR	P_L= P_o,	30	--	--	dB
Linewidth	FWHM	P_L= P_o, CW	--	6	10	MHz
Chirp	Δλ/Δf	P_L= P_o, 500 MHz	40	--	120	MHz/mA
Threshold Current	I_th	T_L=25 °C	--	15	20	mA
Operating Current	I_op	P_L= P_o,	--	--	120	mA
Forward Voltage	V_F	P_L= P_o,		1.2	1.9	V
Monitor Current	I_mon	V_rpd=5 V	9	--	150	μA/mW
Monitor Dark Current	I_D	V_rpd=5 V	--	--	200	nA
Operating Case Temperature	T		-20	--	65	°C
Tracking Error	ᵞ	I_mon=const, γ=10 log (Po/10 mW) [dB]	-0.5	--	0.5	dB
Thermistor Resistance	R_t	T=25 °C	9.5	--	10.5	KΩ
Thermistor B Constant	B	T=25 °C	--	3900	--	K
TEC Current	I_C	ΔT=40 °C	--	--	1.5	A
TEC Voltage	V_C	ΔT=40 °C	--	--	2.0	V

*See available wavelengths from Ordering Options. DWDM wavelength set by laser sub-mount temperature.

2.3 RF Characteristics

Parameter	Symbol	Test Conditions	Min.	Typical	Max.	Unit
Input impedance	Z_IN	nominal		25		Ω
Frequency Range	F	--	45	-	3000	MHz
Frequency Response	\|S₂₁\|	If=Iop 45 MHz-870 MHz T=25 °C	--	±0.5	--	dB
Frequency Response	\|S₂₁\|	If=Iop 45 MHz-3000 MHz T=25 °C	--	±1.0	--	dB
RF return loss	S₁₁	50 – 870 MHz, P=P_F, @ 50Ω,	6	7		dB
Relative Intensity Noise	RIN	CW, P_L= P_o, Note 1	--	--	-155	dB/Hz
2ndOrder Intermodulation	IMD2	Note 2, 42 MHz, @ f2-f1	--	--	-44	dBc
3rdOrder Intermodulation	IMD3	Note 2, 511.25 MHz, @ 2f1-f2	--	--	-53	dBc

Note 1: Test condition: PL= Po, f = 500 MHz, Optical reflection<-40 dB, 0 km fiber.

Note 2: Test condition: Po ≥ 5 mW, 2 unmodulated carriers (f1=553.25, f2=595.25), 35% OMI/ carrier, 50 km zero dispersion single mode fiber, optical reflection <-40 dB.

3.Pin Information & Electrical Schematics:

1	Thermistor
2	Thermistor
3	DC Laser Bias (-)
4	MPD Anode (-)
5	MPD Cathode (+)
6	Thermoelectric Cooler (+)
7	Thermoelectric Cooler (-)
Case Ground
9	Case Ground
10	Case Ground
11	Laser Common (+), Case Ground
12	Laser Modulation (-)
13	Laser Common (+), Case Ground
14	Case Ground

图片11.png

4.Outline Diagram:

Dimensions are in millimeters

图片12.png

5.测试报告/Test Report:

每个产品需附上对应的测试报告，包含以下参数：

-光输出功率，中心波长，P-I曲线，PIN脚定义等。

Test report will be attached with each product. The following characteristic test data should be included：-Optical Output Power, Center Wavelength, P-I curve, Pin Assignments.

6.产品包装/Packaging:

黑色防静电塑料盒真空包装/ Black vacuumize anti-static plastic package.

Ordering Option*	Frequency (THz)	Power (mW)	Wavelength (nm)
WLS-C19102114-01	191.9	10	1562.23
WLS-C20102114-01	192.0	10	1561.42
WLS-C21102114-01	192.1	10	1560.61
WLS-C22102114-01	192.2	10	1559.79
WLS-C23102114-01	192.3	10	1558.98
WLS-C24102114-01	192.4	10	1558.17
WLS-C25102114-01	192.5	10	1557.36
WLS-C26102114-01	192.6	10	1556.55
WLS-C27102114-01	192.7	10	1555.75
WLS-C28102114-01	192.8	10	1554.94
WLS-C29102114-01	192.9	10	1554.13
WLS-C30102114-01	193.0	10	1553.33
WLS-C31102114-01	193.1	10	1552.52
WLS-C32102114-01	193.2	10	1551.72
WLS-C33102114-01	193.3	10	1550.92
WLS-C34102114-01	193.4	10	1550.12
WLS-C35102114-01	193.5	10	1549.32
WLS-C36102114-01	193.6	10	1548.51
WLS-C37102114-01	193.7	10	1547.72
WLS-C38102114-01	193.8	10	1546.92
WLS-C39102114-01	193.9	10	1546.12
WLS-C40102114-01	194.0	10	1545.32
WLS-C41102114-01	194.1	10	1544.53
WLS-C42102114-01	194.2	10	1543.73
WLS-C43102114-01	194.3	10	1542.94
WLS-C44102114-01	194.4	10	1542.14
WLS-C45102114-01	194.5	10	1541.35
WLS-C46102114-01	194.6	10	1540.56
WLS-C47102114-01	194.7	10	1539.77
WLS-C48102114-01	194.8	10	1538.98
WLS-C49102114-01	194.9	10	1538.19
WLS-C50102114-01	195.0	10	1537.40
WLS-C51102114-01	195.1	10	1536.61
WLS-C52102114-01	195.2	10	1535.82
WLS-C53102114-01	195.3	10	1535.04
WLS-C54102114-01	195.4	10	1534.25
WLS-C55102114-01	195.5	10	1533.47
WLS-C56102114-01	195.6	10	1532.68
WLS-C57102114-01	195.7	10	1531.90
WLS-C58102114-01	195.8	10	1531.12
WLS-C59102114-01	195.9	10	1530.33
WLS-C60102114-01	196.0	10	1529.55
WLS-C61102114-01	196.1	10	1528.77
WLS-C62102114-01	196.2	10	1527.99
WLS-C19082114-01	191.9	8	1562.23
WLS-C20082114-01	192.0	8	1561.42
WLS-C21082114-01	192.1	8	1560.61
WLS-C22082114-01	192.2	8	1559.79
WLS-C23082114-01	192.3	8	1558.98
WLS-C24082114-01	192.4	8	1558.17
WLS-C25082114-01	192.5	8	1557.36
WLS-C26082114-01	192.6	8	1556.55
WLS-C27082114-01	192.7	8	1555.75
WLS-C28082114-01	192.8	8	1554.94
WLS-C29082114-01	192.9	8	1554.13
WLS-C30082114-01	193.0	8	1553.33
WLS-C31082114-01	193.1	8	1552.52
WLS-C32082114-01	193.2	8	1551.72
WLS-C33082114-01	193.3	8	1550.92
WLS-C34082114-01	193.4	8	1550.12
WLS-C35082114-01	193.5	8	1549.32
WLS-C36082114-01	193.6	8	1548.51
WLS-C37082114-01	193.7	8	1547.72
WLS-C38082114-01	193.8	8	1546.92
WLS-C39082114-01	193.9	8	1546.12
WLS-C40082114-01	194.0	8	1545.32
WLS-C41082114-01	194.1	8	1544.53
WLS-C42082114-01	194.2	8	1543.73
WLS-C43082114-01	194.3	8	1542.94
WLS-C44082114-01	194.4	8	1542.14
WLS-C45082114-01	194.5	8	1541.35
WLS-C46082114-01	194.6	8	1540.56
WLS-C47082114-01	194.7	8	1539.77
WLS-C48082114-01	194.8	8	1538.98
WLS-C49082114-01	194.9	8	1538.19
WLS-C50082114-01	195.0	8	1537.40
WLS-C51082114-01	195.1	8	1536.61
WLS-C52082114-01	195.2	8	1535.82
WLS-C53082114-01	195.3	8	1535.04
WLS-C54082114-01	195.4	8	1534.25
WLS-C55082114-01	195.5	8	1533.47
WLS-C56082114-01	195.6	8	1532.68
WLS-C57082114-01	195.7	8	1531.90
WLS-C58082114-01	195.8	8	1531.12
WLS-C59082114-01	195.9	8	1530.33
WLS-C60082114-01	196.0	8	1529.55
WLS-C61082114-01	196.1	8	1528.77
WLS-C62082114-01	196.2	8	1527.99

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