CSS 04-3008 Fiber Optic Measurement System 12142024 (2).pdf

CALIBRATION STANDARD SPECIFICATION

PROCUREMENT PACKAGE

FIBER OPTIC MEASUREMENT SYSTEM

DEPARTMENT OF THE NAVY

METROLOGY AND CALIBRATION PROGRAM

CSS 04-3008

DECEMBER 2024

CALIBRATION STANDARDS SPECIFICATION

PROCUREMENT PACKAGE

FIBER OPTIC MEASUREMENT SYSTEM

Prepared by:

Electronics Measurements Branch (MS 32)

Measurement Science Department

Naval Surface Warfare Center, Corona Division

P.O. Box 5000

Corona, CA 92878-5000

DEPARTMENT OF THE NAVY

METROLOGY AND CALIBRATION PROGRAM

Fiber Optic Power and Wavelength CALIBRATION STANDARD SPECIFICATION CSS 04-3008 i

Table of Contents

1.0 SCOPE

1.1 GENERAL

2.0 REQUIREMENTS

2.1 ELECTRICAL POWER SOURCES

2.2 ENVIRONMENTAL REQUIREMENTS

2.2.1 Warm-up

2.2.2 Temperature And Humidity

3.0 PERFORMANCE REQUIREMENTS

1.0 SCOPE

1.1 General. This document specifies the minimum requirements for a Fiber Optic Measurement System. The characteristics of the instruments and components shall be as specified in 3.0 Performance Requirements. It is intended to be used by Navy personnel in shore-based laboratories. For the purpose of this calibration standards specification (CSS), the Fiber Optic Measurement System shall be referred to as the FOMS.

2.0 REQUIREMENTS

2.1 Electrical Power Sources. The FOMS shall operate within the specifications cited in 3.0 Performance Requirements from an AC power source of 109.25V to

126V at 50 Hz and 60 Hz 5% single-phase input power.

2.2 Environmental Requirements. The Fiber Optic Test Equipment environmental performance requirements shall be as specified below in 2.2.1 Warm-up through 2.2.2 Temperature and Humidity. It shall conform to the specified performance when subjected to the environmental conditions of this specification.

2.2.1 Warm-up. The Fiber Optic Test Equipment shall comply with the specified performance requirements after a maximum 1 hour warm-up period preceded by a maximum 2 hour non operating temperature stabilization period.

2.2.2 Temperature And Humidity. The Fiber Optic Test Equipment temperature and humidity limits for both operating and not operating conditions are as specified below. Note, a RH of 90 percent (with the applicable tolerance) does not include conditions of precipitation.

Temperature (C) Relative Humidity (%)

Operating 15 to 30 0 to 90%

Non-Operating -30 to 60 Not Controlled

2.3 Digital Control Interface. A digital control interface shall be provided and shall have the programmable capability to control each device function including all ranges, modes, and levels. The digital interface shall support control of the device without the need for any proprietary drivers or software. The digital control interface shall include the following:

a. IEEE 488.2 General Purpose Interface Bus conforming to IEC 60488-

2:2004 /IEEE 488.2-1992

b. IEEE 802.3 Ethernet connection (using an RJ-45 connector) conforming to LAN Extensions for Instrumentation (LXI) Standard

3.0 PERFORMANCE REQUIREMENTS

Performance requirement for each of the FOMS shall be in accordance with the sub-paragraphs below. These requirements comprise the full performance requirement for the FOMS.

MEASUREMENT SYSTEM MAINFRAME/CONTROL UNIT:

Display: Graphical color display

Compatible with the Laser Sources, Detector Head and Detector Interface, and Variable Attenuators specified herein.

Display resolution (power meter): 0.0001 dB/dBm, 0.01 pW to 10 pW, up to 6.5 digits (should be user definable)

Filler Module (quantity one per each mainframe/control unit)

Shall come with a controller/PC, which shall include all software modules to control the Laser Sources, Optical Power Meter Dual Interface Module, Optical detectors, and Variable attenuators.

850 nm LASER SOURCE:

Center wavelength: 850 nm ±10 nm

Fiber Type: Standard Multi-Mode (MM) 50/125 µm

Output Power: >+3 dBm (2 mW)

Output Connector: Straight connector

Output Connector Interface: ST

CW power stability:

Short term (15 minutes): <±0.02 dB

Long term (24 hour): <±0.05 dB

Quantity: 2

1310 nm LASER SOURCE:

Center wavelength: 1310 nm ±15 nm

Fiber Type: Standard Single-Mode (SM) 9/125 µm

Spectral bandwidth (rms): <5.5 nm

Output Power: >+13 dBm (20 mW)

Output Connector: Straight connector

Output Connector Interface: ST

CW power stability:

Short term (15 minutes): <±0.005 dB

Long term (24 hour): ±0.03 dB

Quantity: 2

1550 nm LASER SOURCE:

Center wavelength: 1550 nm ±15 nm

Fiber Type: Standard SM 9/125 µm

Spectral bandwidth (rms): <7.5 mm

Output Power: ≥+13 dBm (20 mW)

Output Connector: Straight connector

Output Connector Interface: ST

CW power stability: ±0.01 dB per hour

850 nm Ge OPTICAL DETECTOR

Sensor Element: Ge, Ø5 mm

Wavelength: 850 nm

Application fiber type: Standard SM and MM max 100 µm core size, Numeric

Aperture (NA) ≤0.3

Open beam: Parallel max Ø4 mm

Uncertainty: ±2.5 %

Total uncertainty: ±3.7%

Parallel beam, 3 mm spot diameter on the center of the detector to connector fiber with NA ≤ 0.2

For input power > 2 mW add ±0.004 dB/mW; zeroing required

Relative uncertainty:

due to polarization <±0.01 dB spectral ripple (due to interference) <±0.006 dB

Linearity (power): (CW -60 to +10 dBm) at 23 °C ± 5 °C ±0.025 dB at operating temp. range ±0.05 dB

Return loss: >50 dB

Noise (peak to peak): <400 pW at 800 nm

Averaging time (minimal): 100 μs

Analog output: included

Maximum safe input power : +16 dBm

790 to 1610 nm Ge OPTICAL DETECTOR

Sensor Element: Ge, Ø5 mm

Wavelength: 790 to 1610 nm

Application fiber type: Standard SM and MM max 100 µm core size, Numeric

Aperture (NA) ≤0.3

Open beam: Parallel max Ø4 mm

Uncertainty: ±2.2 %

Total uncertainty: ±3.7%

Parallel beam, 3 mm spot diameter on the center of the detector to connector fiber with NA ≤ 0.2

For input power > 2 mW add ±0.004 dB/mW; zeroing required

Relative uncertainty:

due to polarization <±0.01 dB spectral ripple (due to interference) <±0.006 dB

Linearity (power): (CW -60 to +10 dBm) at 23 °C ± 5 °C ±0.025 dB at operating temp. range ±0.05 dB

Return loss: >50 dB

Noise (peak to peak):

100 pW (1200 to 1610 nm)

<400 pW (800 to 1200 nm)

Averaging time (minimal): 100 μs

Analog output: included

Maximum safe input power : +16 dBm

850 nm VARIABLE ATTENUATOR:

Fiber type: 50/125 μm Multi-Mode

Wavelength range: 850 nm

Attenuation range: 0 to 60 dB

Resolution: 0.001 dB

Repeatability: 0.015 dB

Accuracy: ±0.2 dB

Settling time: 100 ms

Insertion loss: ±0.1 dB (NA=0.1); 2.0 dB (NA=0.2)

Return loss: 27 dB

Maximum input power: +27 dBm

Shutter isolation: 100 dB

Input/Output Connector Interface: PC (Straight connector)

Quantity: 2

1310 & 1550 nm VARIABLE ATTENUATOR:

Connectivity: Straight connector

Fiber type: 9/125 μm SMF28

Wavelength range: 1310 and 1550 nm

Attenuation range: 0 to 60 dB

Resolution: 0.001 dB

Repeatability: 0.01 dB

Accuracy: ±0.1 dB

Settling time: 100 ms

Attenuation flatness: ±0.07 dB (1520 nm < λ< 1620 nm)

Spectral ripple: ±0.003 dB

Insertion loss: ±0.07 dB (excluding connectors); <1.6 dB (including connectors)

Insertion loss flatness: ± 0.1 dB (1420 nm < λ <1615 nm)

Return loss: 45 dB

Maximum input power: +33 dBm

Shutter isolation: 100 dB

Output Connector: Straight connector

Output Connector Interface: PC(Straight connector)

Optical Head Connector Adapters:

Must be fully compatible with all the optical detector heads specified herein

Require the following connector types:

FC/PC Connector (Quantity 4)

FC/PC/SPC Threaded Connector (Quantity 4)

SMA Threaded Connector (Quantity 4)

SC Threaded Connector (Quantity 4)

ST Threaded Connector (Quantity 4)

FC Threaded Connector, Narrow Key Way, (Quantity 4)

SC/PC/APC Threaded Connector, (Quantity 4)

Patch Cables:

ST-ST, 1 meter, 9/125 µm (SM), (Quantity 4)

A/FC-ST, 1 meter, 9/125 µm (SM), (Quantity 4)

A/FC-A/FC, 1 meter, 9/125 µm (SM), (Quantity 4)

ST-ST, 1 meter, 62.5/125 µm graded index (GI) (MM), (Quantity 4)

ST-ST, 1 meter, 5.2/125 µm (SM), (Quantity 4)

62.5/125 µm, various lengths, (Quantity 4)

50/125 µm, various lengths, (Quantity 4)

9/125 µm, various lengths, (Quantity 4)

100/140 µm, various lengths, (Quantity 4)