This standard specifies the cavity length series and the corresponding output power series of He-Ne lasers, and proposes typical product models; it also specifies the series values ​​of ignition voltage, preheating time, output power instability and extinction ratio. This standard applies to lasers with a working wavelength of 632.8nm and continuous wave operation. This standard does not apply to frequency-stabilized lasers and other special types of lasers. GB/T 4931-2000 He-Ne laser series spectrum GB/T4931-2000 standard download decompression password: www.bzxz.net

ICS31.260
National Standard of the People's Republic of China
GB/T 4931—2000
The series and type spectrum for helium neon lasers2000 01-03 Issued
Implemented on 2000-08-01
Issued by the National and Mongolian Quality and Technical Supervision Bureau
GB/T 4931—2000
2 Referenced standards
3 Definitions and symbols
Classification and noun
GB/T4931—2000
This standard is based on the provisions of GB/T1.3—19974 Guidelines for standardization work Unit 1: Rules for drafting and expressing standards Part 3 Provisions for writing product standards> and on the basis of a survey of the domestic production of hydrogen atmosphere micro-light alarms, and is a revision of GB/T4931-1985.
The main technical differences between this standard and GB/T4931-1985 are as follows: The structure, technical matters and expression of the standard shall be in accordance with GB/T1.3199? Rectification: the "heating time" series is retained; the "light direction deviation" and "divergence angle" series are removed, and the "starting voltage" series is newly added. The "output power", "output power constant" and "extinction ratio" series in the original GB/T4931-1985 have been greatly modified in this revision: In addition, the term "length scale" in GB/T4931-1985 has been changed to "cavity" in this revision, and its series has been partially modified.
This standard shall be implemented in accordance with GB/T4931-1985. This standard was proposed by the Ministry of Information Industry of the People's Republic of China and was drafted by the China Electronics Technology Standardization Institute. The drafting units of this standard are Beijing Chaoyang Laser Factory and China Electronics Technology Standardization Institute. The main drafters of this standard are Zhang Qi, Shao Lixin and Ma Tianqing. This standard was first issued in January 1985. bzxZ.net
1 Scope
National Standard of the People's Republic of China
Type spectrum of ammonia lasers
These series and type spectrum for helium neonJasersGB/T4937-2000
Replaces 4051-1965
This standard specifies the cavity length series and the corresponding output power series of ammonia lasers (hereinafter referred to as lasers), and proposes typical product models. In addition, it also specifies the starting voltage, preheating time, output power and extinction coefficient.
This standard is applicable to lasers with a working wavelength of 632.8nm and continuous operation. This standard is applicable to chlorine-stabilized lasers and other types of lasers. 2 Reference standards
The texts contained in the following standards constitute the provisions of this standard through reference in the production standards. When this standard is published, the versions shown are valid. All standards will be revised. The parties using this standard should explore the possibility of using the latest version of the following standards. CB/T4799—1984 Gas laser model naming method 3 Definitions and numbers
This standard adopts the following definitions.
3.1.1 Firing voltage The firing voltage is the voltage between the two electrodes required to make the discharge tube of the exciter ignite. 3.1.2 Warm-up time arm-upime
The time required for the laser to reach the numerical indicators specified in the product detailed specification under the given working current from the moment the laser is ignited.
3.1.3 Output power output power
The increased laser power output from the laser output terminal under the specified mode and specified voltage. 3.1.4 Output Power Instability outputPowerinsrshility Within the specified time (1h> range. The output power of the laser is filtered out within the specified time (less than: H). If, within the specified time, the maximum output power and the minimum output power of the laser are respectively the average output power, they can be calculated as the output power instability S, which is:
3.1-5 cm³/cm³
s =+ Prg P × 100%
The distance between the working surfaces of the two reflectors of the laser cavity is 3-1.6 m³/cm³. mode
rate water level optical treatment please arrive within: weight vertical electric density filter propagation method still fee offer a beautiful light east energy (dynamic army) degree intrinsic distribution or whole, 3.1. fundamentaltransversrmode singlemode ainglemode State Quality and Technical Supervision Bureau 2000-01-03 approved 2000-08-01 implementation
GB/T4931—2000
laser optical resonator and low-order mode, expressed as TEMm 3-1. high-order node: multimode mode The optical resonator requires other transverse modes other than the natural transverse mode in the cavity, 31.9i light ratio extinction ratio
The laser beam is transmitted through the vibrator, the maximum light intensity is small, 3.2#
Symbol table 1.
Death symbol
Output power
Single sail physical function
Three-way output power
Unable to be determined by the green fire
Physical output power is not determined by the type
Extinction
Classification and naming
The classification and naming of lasers shall comply with the provisions of GB/T47. 5 Requirements
Laser length series and output power series dead table 25.1
List of laser starting voltage and output power
Range of output power
Expresses the range of output power
HN25DNT
x101x12
GB/T4931—2000
Table 2 (）
X10×1
X10×19
X10x10
2 See Table 35.2 for the starting voltage, preheating time, power instability and extinction ratio of the light shield
Hara : Pa,rh
Single shock payment number
Dong column value
Example
HN45GNI02
..61.U4F5UEf..1..9.9.5
1.0x1.1x.3 xu
5155)Fb
1. 31=2 51=5. 3± 1. 6 ± 15. 55a 11 on 12 odo -1
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