Att 1 TRD 16 Jan 23.pdf

Technical Requirements

For

SWIR Laser

For The

Guided Weapons Evaluation Facility

782 TS/RNWG

16 January 2023 ii

Revision History

Rev. No. Description Date iii

Abbreviations, Acronyms, and Symbols

A-weighted decibels dBA

Degrees Celsius °C

Earth’s gravitational constant g

Flight Motion

Simulators

FMS

Guided Weapon

Evaluation Facility

GWEF

Hertz Hz

Inch (Inches) ”

Infrared IR

Kilo k

Liters per minute lpm

Mega M

Mid-wave Infrared MWIR

Micrometers µm

Millimeters mm

Milliradians mrad

Pounds lbs

Pound-force per square inch psig

Volts Alternating

Current

VAC

iv

Table of Contents

Abbreviations, Acronyms, and Symbols ....................................................................................... iii

Table of Contents ........................................................................................................................... iv

1. Introduction

2. Laser System Physical Requirements

3. Power Requirements

4. Warranty

5. Infrared Laser Performance Requirements

1. Introduction

a. This technical requirements document is for a SWIR laser system to be used at the Guided Weapon Evaluation Facility (GWEF), 782 Test Squadron/RNWG, Eglin AFB, FL. This SWIR laser system will be used to develop a new GWEF test system. This SWIR laser source and support equipment must meet specific physical and performance requirements to be suitable to meet the project task requirements.

b. Quantity: The GWEF requires one complete laser system with a controller, control software, optional thermoelectric chillers, cooling box, water cooling plate, and forced air (fan) cooling plate.

c. The terms “Threshold” and “Objective” may be used throughout this specification. A threshold is the minimum acceptable requirement. An objective is a desired capability.

d. Contractor proposals should identify any specifications that are not technically feasible or have an undue impact on cost. Should this occur, proposals should provide recommended alternatives to the identified specification as well as impacts on overall system performance and cost.

2. Laser System Physical Requirements

a. The laser head volume shall be no larger than 8” x 8” x 1.5”.

b. The laser head weight (excluding cooling block, controllers and cables) shall be no greater than 4.5 lbs.

c. The cooling block shall be no greater than 3 lbs.

d. The laser system shall be mountable using standard ¼”-20 tapped mounting holes.

e. The laser head shall be capable of surviving radial and tangential shocks of:

THRESHOLD: No requirement; OBJECTIVE: 3g. Where surviving such shocks shall include:

i) Remaining operational after the shock,

ii) Maintain unchanged beam power, shape, and divergence following the shock,

iii) OBJECTIVE: Preserve the same beam pointing before and after the shock.

3. Power Requirements

a. Laser and Thermoelectric shall have a Universal Power Input (100-240 VAC, 50/60 Hz).

4. Warranty

a. The Laser shall have a 12-month or 2000 operating hours standard customer warranty.

5. Expected Need Date

a. This procurement’s expected award date is on or before July 3, 2023 with a date required in place of October 9, 2023 (14 weeks after award). Upon need date, the systems must have been delivered to the GWEF.

6. SWIR Laser Performance Requirements

a. The SWIR laser performance requirements are given in Table 1 below.

Table 1 1.550 µm SWIR Laser Requirements

1.55 µm SWIR Laser Requirements

Threshold Objective

Quantity 1

Operation Mode Pulsed

Center Wavelengths 1.550 µm ±0.012µm 1.550 µm ±0.006µm

Spectral Resolution 0.2 µm 0.1 µm

Spatial Mode TEM00 (>85% fit to Gaussian)

Beam Quality (M2) <1.5 <1.3

Average Optical Power 2 W 3 W

Rise/Fall Time (10-90%) < 10 ns

Beam Divergence

(full angle, 1/e2 intensity width) <5 mrad <4 mrad

Beam Diameter

(1/e2 intensity width) <3 mm <1.5 mm

Beam Ellipticity <1.5

Pulse Repetition Frequency 18 kHz 2kHz

Pulse Duration (FWHM) 20 ns 15ns

Pulse-pulse stability 10.0% peak to peak, and <3% RMS

Operating Range (Case Temp) 15 - 50 °C

Polarization (relative to mounting surface) Linear Vertical

Polarization Stability < 2% deviation in 1 hour

Control Interface

Controller included with system stand-alone operation or computer interface via USB 2.0, Ethernet 10/100, or RS232

External Trigger Signal TTL or LVDS TTL