OI1125 • OI2125

Optical Transmitter and Receiver
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Features & Benefits

OI1125 E/O Transmitter
  • Generates SONET/SDH Compliant Optical Waveforms up to 12.5 Gb/s
  • Internal DFO Laser at 1550.9 nm
  • Adjustable Extinction Ratio from 5 dB to >12 dB (>12 dB nominal) to Test with Worst-case Conditions
  • Accepts a Wide Range of Input Voltage Levels from 0.25 to 1.5 Vp-p
  • Remote Operation and Monitoring
OI2125 O/E Receiver
  • High Performance Receiver Supports Data Rates up to 12.5 Gb/s
  • User-installable Modules for Clock Recovery at 10.664 Gb/s and 9.953 Gb/s
  • Broad Wavelength from 1100 to 1620 nm
  • High Sensitivity (-16 dBm) to Detect Low-level Optical Input Signals
  • Amplified Electrical Output to Connect Directly to Most Commercial Error Analyzers

Applications

  • Bit Error Rate Testing
  • Optical Receiver and Transmitter Testing
  • Optical Component and Fiber Loop Testing
  • Optical Signal Analysis
  • Remote Operation for System Integration

A High-performance Optical Interface for Bit Error Rate Testing of Optical Systems, Subsystems and Components up to 12.5 Gb/s

The Tektronix high-performance OI1125 E/O transmitter and OI2125 O/E receiver offer a simple and cost-effective solution for generating and receiving SONET/SDH compliant optical signals for bit error rate (BER) testing and optical signal analysis up to 12.5 Gb/s. Both include a remote port for easy integration and remote monitoring and control in a test system environment. Users can completely control instrument settings, monitor instrument status and access additional features through the remote port.

Transmitter Generates SONET/SDH Compliant Optical Waveforms up to 12.5 Gb/s for Testing Optical Subsystems and Components

Using the internal 1550 nm DFB laser or an external C-band tunable laser, the OI1125 is excellent for generating optical signals modulated by a high-performance pattern generator and is designed so most commercial generators connect directly to the modulation input. The input voltage range (250 mV to 1.5 V) accommodates most commercial pattern generators for bit error ratio (BER) testing of optical components and receiver testing. The adjustable extinction ratio allows testing the receiver sensitivity at worst-case conditions without complex test setups. The OI1125 also generates optical signals for optical signal analysis of components, systems and subsystems using a CSA8000 sampling oscilloscope.

Receiver Clock Recovery and Multi-data Rate Support Simplify Testing of High-performance Optical Transmitters, Laser Diodes, Optical Components and Fiber Loops

The OI2125 O/E Receiver receives modulated optical signals up to 12.5 Gb/s from transmission systems, including SONET/SDH compatible systems, and converts them to electrical signals for further testing by equipment such as a bit error rate tester (BERT). The OI2125 electrical output can be connected directly to most commercial error analyzers, and does not require an external amplifier. The data and clock output voltage ranges (0.5 to 1.5 Vp-p) make the OI2125 an excellent optical interface for most commercial error analyzers.

With the optional OM1420 module, the receiver can extract the clock on signals up to 10.664 Gb/s (OC-192 FEC). The recovered clock signal can then be used to trigger a CSA8000 sampling oscilloscope or serve as the clock input to an error analyzer. Used with the Tektronix TDS/CSA8000 series sampling oscilloscope and a pattern generator, the OI1125 can create modulated optical signals for high-speed optical communications testing, extinction ratio measurements, eye-pattern analysis and optical signal analysis. The optical signal is passed through the DUT and received by the appropriate 80Cxx sampling head on the oscilloscope.

The OM1420 OC-192 Dual-rate Clock Recovery Module supports standard OC-192 (9.953 Gb/s) and OC-192 FEC (10.664 Gb/s).

Characteristics

OI1125 E/O Transmitter Specifications

Specification

Min

Typ

Max

Units

Comments

Data Rate*1

2.4

   

12.5

Gb/s

   

Data Input Voltage

0.25

   

1.5

Vp-p

   

Int. (DFB) Wavelength

1550.82

1550.92

1551.02

nm

±1 nm adjustment range

Ext. (Modulator) Wavelength Range*2

1530

   

1565

nm

   

Input Power

<5

   

+12

dBm

   

Extinction Ratio

12

   

   

dB

Up to OC-192

10

   

   

dB

Rates >OC-192

Adjustable Extinction Ratio*3

5

   

>12

dB

(typical)

Peak-to-peak Jitter

   

   

0.15

UI

Up to OC-192

   

15

18

ps

Rates >OC-192 Data Input Voltage 0.5 to 1.5 Vp-p

Random Jitter

   

   

0.02 UI up to OC-192

2 psRMS Rates >OC-192

   

Output Power

+0

+2

+4

dBm

Using the internal laser

Insertion Loss

   

   

8

dB

   

Percent Crossing

45

   

55

%

   

Eye Mask Testing*4

GR-1377-CORE

GR-253-CORE

*1 Data rates down to 622 Mb/s are achievable, but specifications are not guaranteed at rates below 2.4 Gb/s.

*2 Wavelength range from 1565 nm to 1600 nm is achievable, but specifications are not guaranteed above 1565 nm.

*3 The range of adjustment for the extinction ratio may vary from unit to unit, but is typically 5 dB to >12 dB. The OI1125 is calibrated with the adjustable extinction ratio disabled. Specifications are guaranteed at the calibrated (fixed) position.

*4 No mask hits with 5% mask margin for OC-48, OC-192, and 12.5 Gb/s (scaled OC-192 mask).

OI2125 O/E Receiver Specifications

Specification

Min

Typ

Max

Units

Comments

Data Rate

2.4

   

12.5

Gb/s

   

Wavelength (typical)*5

1100

   

1620

nm

   

Input Power

-16

   

+0

dBm

   

Loss of Signal Threshold

-27

-25

-23

dBm

   

Input Fiber Size

   

9

   

um

   

Data Output Voltage

0.05

   

1.5

Vp-p

-8 to +0 dBm input power

0.2

   

1.5

Vp-p

-16 to -8 dBm input power

Upper Bandwidth

7.5

   

   

GHz

   

Lower Bandwidth

   

   

50

MHz

   

Jitter (rms)

   

   

1.5

psRMS

-8 to +0 dBm input power

Percent Crossing

45

   

55

%

   

Eye Mask Testing*6

GR-1377-CORE

GR-253-CORE

*5 Manufacturer specifications for the photodiode are 1100 to 1620 nm. The OI2125 specifications are tested and verified for 1530 to 1565 nm, but are not verified beyond this range.

*6 No mask hits with 5% mask margin for OC-48, OC-192 and 12.4 Gb/s (scaled OC-192 mask) at an input power of 0 to -8 dBm. For input power levels down to -16 dBm, a minimum BER of 10-12 is typical for rates up to OC-192, and 10-10 for rates above OC-192.

Environment

Temperature -

Operating: 0 °C to +40 °C.

Nonoperating: -40 °C to +71 °C.

Humidity -

Operating: 5% to 95% RH (up to +30 °C).

   5% to 45% RH (30 °C to +50 °C).

Nonoperating: 5% to 95% RH (up to +30 °C).

   5% to 45% RH (30 °C to +50 °C).

Altitude -

Operating: Up to 3000 m (10,000 ft.).

Nonoperating: Up to 12,000 m (40,000 ft.).

EMC Compliance - Meets or exceeds EN55011 Class A Radiated and Conducted Emissions; FCC47 CFR, Part 15, Subpart B, Class A.

Safety - UL3111-1; CSA1010.1; EN61010-1; IEC61010-1.

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Power Supply

Rating - 100 to 240 VAC.

Range - 90 to 265 VAC.

Maximum Power and Current - 40 W Max.

Frequency - 47 to 63 Hz.

I/O Interface

OI1125 E/O Transmitter -

Laser In (Optical) FC/APC PMF.

Modulator Data In (Electrical SMA).

Low-Frequency Direct Modulation (Electrical SMA).

Laser Out (Optical) FC/APC PMF.

Modulator Out (Optical) FC/APC: Universal.

Remote Interface/Laser Interlock (DB25).

OI2125 O/E Receiver -

Optical Input (Optical) FC: Universal.

Data Out (Electrical SMA).

Attenuated Data Out (Electrical SMA).

Remote Interface (DB25).

Physical Characteristics

OI1125 E/O TRANSMITTER

Dimensions

mm

in.

Weight

kg

lbs.

OI2125 O/E RECEIVER

Dimensions

mm

in.

Weight

kg

lbs.

SHIPPING WEIGHT WITH PACKAGING

Instrument/Module

kg

lbs.

RACKMOUNT

Dimensions

mm

in.

Height

45

1.75

Width

204

8

Depth

331

13

Instrument only

1.72

3.79

Height

45

1.75

Width

204

8

Depth

331

13

Instrument only

1.91

4.20

With slot cover installed

2.09

4.62

With OM1420 installed

2.26

4.99

OI1125

5.12

11.39

OI2125

5.49

12.22

Height

89

3.5

Width

483

19

Depth

477

18.75

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