value adding solutions to optical applications transmitter product presentation updated: 20 th oct...

Value adding solutions to optical applications

Transmitter Product Presentation

Updated: 20th Oct 2005


Outline

• Product overview• Customer benefits & competitive advantage• Fabry-Pérot (FP) laser products• Distributed Feedback (DFB) laser products• Coaxial module laser products• Conclusion


Laser Product overview

• Wavelengths• 795, 808, 850 nm• 905, 920 nm• 1310 nm• 1430, 1490 nm• 1550 nm• Custom (635 – 1700nm)

• Types• Fabry-Pérot (FP)• Distributed Feedback

(DFB)• Broad Area

• Packages• Chip / Bare die• Chip-on-submount• TO-CAN• TOSA• Coaxial

• Modulation• CW / QCW / Pulsed• 1.25 Gb/s• 2.5 Gb/s• 10 Gb/s


Modulight 1310 nm FP laser diode products for digital applications


Modulight 1310 nm FP laser products

• Laser product family for different needs and applications:• ML-C-1310-FP-10G laser chip

• 10 Gb/s FP laser chip for 10G transponder and transceviver manufacturers

• SONET OC-192 VSR (< 600 m)

• SDH STM VSR-64.1r, STM I-64.1r (< 600 m)

• OIF VSR-4, (< 600m)

• 10 Gb/s over FDDI-grade MM fiber (220-300 m)



• ML-C-1310-FP-2G5• Bare 2.5 Gb/s FP die for full packaging and

assembly lines• SONET OC-48 SR / SDH STM I-16

• 1.25 Gb/s Gigabit Ethernet

• 1.06 Gb/s / 2.125 Gb/s Fibre Channel

• ML-T-1310-FP-2G5-F/B-X• ML-C-1310-FP-2G5 laser chip in a TO-56

can for 2.5 Gb/s and 1.25 Gb/s TOSA and transceiver manufacturers

• Available with flat window and ball lens caps

• Please inquire custom caps



• ML-COAX-1310-FP-2G5-2• Reliable coaxial fiber pigtail module

with ML-C-1310-FP-2G5 chip• 2 mW output power• Selectable connector

• ML-W-1310-FP-2G5 1310 nm FP epiwafers

• 1310 nm FP epiwafers with Modulight’s high-performance design or with customer’s own design


Customer benefits

• Narrow spectral linewidth enables longer transmission distances with high-speed operation

• Strong core material design with superior temperature behavior for uncooled applications

• Controlled beam characteristics for optimal coupling efficiency

• Controlled design and manufacturing process from epiwafer to TO-can level

• Reliable long-term chip supply• Custom features available with short lead time to

production


ML-C-1310-FP-10G –10 Gb/s FP

• Proven robust manufacturing process inherited from 2.5G product

• 10 mW kink-free output power up to 85°C

• Narrow linewidth (typ. RMS 1 nm, -20 dB noise floor) reduces chromatic dispersion

• High-speed operation also at elevated temperatures

• Alignment features for automated pattern recognition

• Superior characteristic temperature of >91K 25-85°C, >88K 15-95°C (cw)


ML-C-1310-FP-10G – high-temperature operation

10 mW kink-free single transverse mode cw power

5 serial resistance

Stable slope efficiency

Example data: 10 devices from different laser bars


ML-C-1310-FP-10G – good fiber coupling

Good beam shape for optimal coupling efficiency

Typical beam ellipticity ~1.4

Horizontal FWHM 24.33°

Vertical FWHM 34.42°


ML-C-1310-FP-10G – reliability

link to: Full reliability reports


ML-C-1310-FP-10G – S21


ML-C-1310-FP-10G –narrow spectrum

Laser: 036-006, 25°C, 50mAIntensity / dBm

-100-90-80-70-60-50-40-30-20-10

0

1250 1260 1270 1280 1290 1300 1310 1320 1330 1340

Laser: 036-006, 85°C, 50mAIntensity / dBm

-100-90-80-70-60-50-40-30-20-10

0

1280 1290 1300 1310 1320 1330 1340 1350 1360 1370

RMS = 1,34nm RMS = 1,20nm

Excellent linewidth in broad temperature range


ML-C-1310-FP-10G – eye pattern

Rise time 39.6 ps (20-80)

Fall time 46.7 ps (80-20)

Jitter pk-pk 19.11 ps

Jitter rms 3.31 ps

S/N 10.21

ER > 5 dB

(Modulight 10Gb/s die in customer 10 Gb/s TO-can, Ib = 40 mA, room temperature, filtered)


ML-C-1310-FP-10G – eye pattern

10.312 Gb/s Eye-Pattern [N=231-1], 10GBASE-R mask, 20% margin

(example data from customer sub-assembly, Iljin Corp.)


ML-C-1310-FP-2G5

• 1310 nm bare FP laser die for up to 2.5 Gb/s digital applications• For customers with own packaging and assembly lines

• Reliable AlGaInAs/InP epi structure with Modulight’s high-performance design

• 7 mW rated output power (to be upgraded)

• >2.5 Gb/s operation -40-85°C

• Low <5 serial resistance

• Automated testing in Modulight’s verification process at 25°C and 85°C• I-L curve (Ith, Iop, slope, kink power)• I-V curve (Vop, Rs)• Spectral measurement (Central wavelength,

RMS spectral width)• Beam shape (ThetaV, ThetaH)


ML-C-1310-FP-2G5

0

500

1000

1500

2000

2500

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4

Delta lambda 25 (nm)

Fre

qu

en

cy

.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

FrequencyCumulative %

N = 13297

• Narrower (<1 nm) spectral width than for competing 1310 nm FP laser products Reduced

chromatic dispersion

Longer transmission distances than with conventional MLM lasers


Developed for mass production

• Modulight’s chip products developed to match customers’ automated process lines• Die-shear force typ. 390 g• Ball shear force typ. 48 g• Wire pull strength >6 g

• Metal reflection and dicing quality suitable for pattern recognition methods

• Good beam shape for optimal coupling efficiency• Typical beam ellipticity ~1.4

(32:23) 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

-60 -40 -20 0 20 40 60

Angle (deg)

Re

lativ

e in

ten

sity

T = 25°C, Po = 5 mW


Unbeaten temperature performance

• Best 2.5 Gb/s 1310 nm high-temperature FP laser chip in the market

• Suitable for uncooled transmitters, transceivers and transponders

• Best high-temperature performance• Slope efficiency typ. 0.28

W/A@85 °C• Key to low cost through simple

packaging• Higher manufacturing and design

tolerances for customers


ML-T-1310-FP-2G5-F/B-X

• Modulight’s high-performance 2.5 Gb/s nm 1310 nm FP chip in a TO-56 can

• Available with flat window and ball lens caps• Ask for custom caps• Ball lens cap can with low beam divergence

(<10°)• Stable focal distance• 100% gross leak test for hermeticity• 300-700 µA monitor PD current• 0.30 W/A slope efficiency 25°C (cw, with ball

lens cap)• 0.22 W/A slope efficiency 85°C (cw, with ball

lens cap)


Customer interface – quality of service

• Fast customer response• Modulight’s committed technical and sales personnel in your

service for after-sales support

• Product-specific quality plans available for customer review• Describing QC/QA activities in Modulight’s production in

detail• Exact description of all verification and validation criteria

• Easy access to production and verification data through Modulight’s manufacturing database• Delivery of all verification data to customer in electrical

format• Full process traceability


ML-C-1310-FP-2G5 – reliability



ML-C-1310-FP-2G5 – threshold current

0

1000

2000

3000

4000

5000

6000

0 8.6 9.4 10.2 11 11.8 12.6 13.4 14.2 15 15.8 16.6 17.4

Ith 25 (mA)

Fre

qu

en

cy

.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%


N = 24515

0

500

1000

1500

2000

2500

16 17 18 19 20 21 22 23 24 25 26 27 28

Ith 85 (mA)

Fre

qu

en

cy

.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%


N = 24464

25°C 85°C

2nd derivative method


ML-C-1310-FP-2G5 – frequency response


ML-C-1310-FP-2G5 – 2.5 Gb/s eye pattern

2.488 Gb/s, Iop = 30 mA, ext ratio 9.24 dB. OC-48/STM-16 mask, 20% margin

(Modulight 2.5 Gb/s die in customer sub-assembly, Iljin Corp.)


ML-C-1310-FP-2G5 – for 1.25 Gb/s and 2.5 Gb/s

2.488 Gb/s, OC-48/STM-16 filter

(Modulight 2.5 Gb/s die in Customer’s SFP transceiver)

ML-C-1310-FP-2G5 –2.5 Gb/s eye pattern


ML-T-1310-FP-2G5-F-3

• 55 km Gigabit Ethernet transmission, 13.5 dB extinction ratio, Pout = -0.2 dBm

• 25 °C ambient temperature (Tc = 41°C)• λ=1310.08, λ = 0.88 nm• Modulight TO-can in Allied Telesyn (US) GigE transceiver sub-assembly

Modulated spectrumEye pattern after 55 km transmission


ML-T-1310-FP-2G5-F-3

• 40 km Gigabit Ethernet transmission, 9.9 dB extinction ratio, Pout = -0.8 dBm

• 70°C deg ambient temperature (Tc = 87.5°C)

• λ=1325.10, λ = 0.79 nm• Modulight TO-can in Allied Telesyn (US) GigE transceiver sub-assembly

Eye pattern after 40 km transmission Modulated spectrum


Modulight 1310 nm DFB products


1310 nm DFB laser products

• Products for SONET OC-48, 1x/2x Fibre Channel and long-reach Gigabit Ethernet• ML-C-1310-DFB-2G5

• 300x300 µm bare die

• ML-T-1310-DFB-2G5• TO-56 can with flat window cap or aspherical lens cap


1310 nm DFB laser products

• Active area design platform inherited from Modulight’s mature 1310 nm FP products• Focus on full operating temperature range (0-

85°C), not just RT operation• Small slope saturation at elevated temperatures• Small beam ellipticity

• Cost-effective grating process• Typ 43 dB SMSR• Typ 0.07 nm FWHM (-20 dB noise floor)• Temperature shift 0.09 nm/K


OPTICAL OUTPUT POWERvs. FORWARD CURRENT

0

5

10

15

20

25

30

0 20 40 60 80 100

If (mA)

Po

(m

W)

15°C25°C35°C45°C

55°C

65°C

75°C


OPERATING CURRENT@Pop = 5 mW ANDTHRESHOLD CURRENT vs. CASE TEMPERATURE

0

10

20

30

40

50

60

5 15 25 35 45 55 65 75 85

Tc (°C)

Iop

(m

A)

Ith

(m

A)

Iop

Ith


ML-C-1310-DBF-2G5 – reliability



ML-C-1310-DFB-2G5 – frequency response


ML-C-1310-DFB-2G5 – 4 Gb/s modulation test

• Data Rate 4 Gb/s.• PRBS: 231-1• Eye Diagrams @

temperatures of 0, 25, 50, 75, 85, 100°C andlink distances of 0km, 2km and 10km

• Temperature compensation not optimized.• RF filter between LDD and LD not optimized.

⇨ Some ringing occurs in eyes, can be eliminated by optimized filter circuit

• LD maintains SM operation with 40 dB SMSR at all evaluated operation conditions.

• Clear open eyes @ all evaluated operation conditions• 10 km transmission with 4 Gb/s @ 0 - 100°C


Link: 0 m; Temp.: 0°C

ER: 5,5dBaverage power: 570µW


Link: 2 km; Temp.: 0°C


Conclusion

• Robust and manufacturable laser products• Strong customer focused technical pre and

after sales• Key success factors

• Agility, Reliability, Customer Focus and Profitability

• Quality, environment and cost-effectiveness in mind

• Volume manufacturing capacity in own building


Coxial modules for• Cable TV (CATV)• RF over fiber• Hybrid fiber coax (HFC) networks• Wireless repeaters• High speed optical fiber communication• Short and intermediate reach• SONET OC-48 systems • SDH STM-16 systems• 2.5 Gb/s long haul coarse WDM • Hybrid Fiber Coax (HFC) networks • Video surveillance


Coaxial modules

• 1310 nm FP w/ or w/o isolator

• 1310 nm DFB w/ or w/o isolator

• 1550 nm FP w/ or w/o isolator

• 1550 nm DFB w/ or w/o isolator

• All products and configurations:

http://www.modulight.com/products.html


[email protected]

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value adding solutions to optical applications transmitter product presentation updated: 20 th oct...

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