DM80-01-1-9460-3-LC datasheet, PDF

Datasheet> All Categories > Wireless rf/communication> Optical fiber> DM80-01-1-9460-3-LC

DM80-01-1-9460-3-LC: DescriptionFiber Optic Device; CategoryWireless rf/communication Optical fiber; File Size262KB，10 Pages; ManufacturerFINISAR; Websitehttp://www.finisar.com/home.php

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DM80-01-1-9460-3-LC Overview

Fiber Optic Device

DM80-01-1-9460-3-LC Parametric

Parameter Name	Attribute value
Maker	FINISAR
Reach Compliance Code	unknown

DM80-01-1-9460-3-LC Preview

Finisar

Product Specification

10Gb/s 120km Telecom CML

13pin-GPO Butterfly Transmitter

DM80-01-0/1/2

PRODUCT FEATURES

•

High Performance CML

Supports

multi-bit-rate application, from

9.95Gb/s to 11.1

Gb/s

Supports link length up to 120km

without DCM

4-7dBm modulated output power

Case t

emperature range -5°C

APPLICATIONS

•

Metro, Regional and Long haul

DWDM application

SONET/SDH OC-192, STM-64

10G Ethernet

10X Fibre Channel

75°C

Supports application with and

without FEC

TDM, DWDM single channel

Covers ITU-T C- and L-band

channels (1527.773nm to

1605.744nm)

Finisar’s DM80-01 butterfly transmitter module employs proprietary Chirp Managed

Laser (CML

) technology and has been specifically designed to transmit 10Gb/s data

over physical distances up to 120km. The module is comprised of a directly-modulated

DFB laser chip and a co-packaged proprietary optical spectrum reshaper (OSR) passive

optical element. The OSR component also provides a frequency locking function and

allows operation on the ITU-T channels within ±2.5GHz with coverage across both C-

band and L-band for DWDM versions. Also included in the standard butterfly footprint

are 2 photo-detectors for power control and wavelength locking, together with 2 TECs for

temperature stabilization. Key specifications for the optical and electrical characteristics,

physical requirements, environmental conditions and reliability/quality requirements are

detailed in this document.

Note:

Long version of this document with more detailed optical and electrical parameter

specification is available upon request.

Finisar Corporation –10-May-07

Rev_A

Page 1

DM80-01-0/1/2 CML

Butterfly Transmitter Product Specification – May 2007

Finisar

I. Internal Optical Layout

Isolator

PD2

OSR

DFB

Fibre stub

Isolator

TEC

Beamsplitter

PD1

Window

Figure 1

Figure 1. CML internal layout

The DM80-01 modules uses a 10Gb/s directly modulated DFB chip co-packaged with an

optical spectral re-shaper (OSR) element as shown in Figure 1. An optical isolator is

included between the DFB and the OSR while a beam-splitter component and 2

photodetectors are configured to allow frequency locking. Lens#1(L1) is used to

collimate the DFB laser output and pass the beam through the splitter and OSR, prior to

coupling into single-mode fiber using Lens#2 (L2). A second isolator is included in the

fiber pigtail to minimize the effect of external back-reflections on module performance.

II. Control Method

The schematic in Figure 2 shows the key components and control loops that are used to

operate the module. The output power of the DFB is monitored by photodetector PD1.

Photodetector PD2 monitors the back-reflection from the OSR. The photocurrent ratio

from the two detectors is used to lock the relative spectral locations of the laser and the

OSR via temperature control of the DFB using TEC#1. A second TEC (TEC#2) controls

the temperature of the OSR and locates the operating point of the OSR on the ITU grid

for DWDM applications.

Finisar Corporation –10-May-07

Rev_A

Page 2

DM80-01-0/1/2 CML

Butterfly Transmitter Product Specification – May 2007

Finisar

Constant

Output Power

Constant Temperature

Modulation

Current

Bias

Current

Thermistor#2

Thermistor#1

DFB

TEC#1

PD1

PD2

OSR

TEC#2

Start Up Temperature

Constant Photodetector

Ratio (locker)

Figure 2: Control schematic for DM80-01 Module

III. Absolute Maximum Ratings

Table 1: Absolute maximum ratings

Item

Parameters

1. Storage Temperature

2. Heat Soldering Temperature

3. Returned Fiber Power

4. Laser Forward Current

5. Laser Reverse Voltage

6. PD Forward Current

7. PD Reverse Voltage

8. TEC Current

9. TEC Voltage

10. Transient Cooler Current

11. Tolerable External Reflection

12. Optical Return Loss

Conditions

on leads, 6 seconds max

CW, 1 second transient

Peak

1 sec

Min

-40

-1.9

Max

260

200

1.9

1.8

1.9

-14

-27

Units

°C

dBm

Finisar Corporation –10-May-07

Rev_A

Page 3

DM80-01-0/1/2 CML

Butterfly Transmitter Product Specification – May 2007

Finisar

IV. Standard Operating Specifications

Table 2: Standard Operating Requirements

Min

Item

Parameters

Typ

Max

Units

Comments

All the following

transmission

parameters are

tested at 9.95 or

10.7Gb/s

Bit Rate

9.953/10.7

11.1

Gb/s

10.

11.

12.

13.

Operating Case

Temperature Range

Wavelength (SOL)

Locked deviation from

ITU

Modulated Output Power

(EOL)

Operating Drive current

(SOL)

Allowed Deviation from

SOL drive current over

life and temperature

Required Resolution of

Operating Drive Current

SMSR

Wavelength temperature

tuning coefficient

Wavelength current

tuning coefficient

Laser threshold current

Forward Bias Voltage

-5

ITU-T Grid

-2.5

-15

°C

GHz

ITU-T wavelength

grids defined in

Tables 9 & 10

EOLOT

SOL operation

condition to be

discussed.

2.5

100

0.09

GHz

dBm

nm/°C

pm/m

dB/Hz

MHz

Ohms

360mA/4096 levels

0.1

1.8

-135

14. RIN

15.

Laser CW Linewidth

(FWHM)

16. Module Input Impedance

17.

Peak to Peak voltage,

Vpp

1.2

0 to 10 GHz,

Measured before

OSR is installed

Measured before

OSR

Recommend use of

EML driver

technology

Into 50ohm

Customer must

provide adjustment

capability on

electrical driver

BT Filter OFF

tbc

Before OSR

Receiver threshold

optimized for

1.8

2.5

18. Electrical input crossing

Extinction Ratio

(EOLOT)

Optical crossing

S11

S21 (3dB BW)

Power dispersion Penalty

@ 30dB OSNR, 9.95Gbs,

19.

20.

21.

22.

23.

tbc

Mask

tbc

GHz

Finisar Corporation –10-May-07

Rev_A

Page 4

DM80-01-0/1/2 CML

Butterfly Transmitter Product Specification – May 2007

Finisar

transmission, to be

discussed

Receiver threshold

optimized at BB and

1600ps/nm

BER=10

-12

, 1600ps/nm

(EOLOT)

OSNR dispersion Penalty

24. @ BER=10

-4

, 10.7Gbs,

1600ps/nm (EOLOT)

Note:

1. Please call Finisar to discuss the receiver configuration, including types of PIN/APD,

and power level into APD, and the type of CDRs are used. 2400ps/nm transmission

is possible with trade-off between back-to-back eye diagram and transmission

performance; DM80-01 is also compliant with the newly accepted ITU 10Gbps

120km standard P1V1-2C2

V. Mechanical Details

Figure 3: Package Outline Drawing

Finisar Corporation –10-May-07

Rev_A

Page 5

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