Cart 0 Product Products (empty)
No products
To be determined Shipping
$0.00 Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart. There is 1 item in your cart.
Total products
Total shipping To be determined
Total
New Sale! 
View larger
View larger TIA-455-128
New product
TIA-455-128 1996 Edition, July 1, 1996 Procedures for Determining Threshold Current of Semiconductor Lasers
More info
Description / Abstract: Introduction
Intent
Although light emission can occur as soon as current is applied to the semiconductor laser, it does not emit coherent light until the current exceeds a critical value, known as the threshold current. The threshold current is one of the most important parameters for lasers. This procedure provides standard .measurement techniques for semiconductor lasers.
This procedure covers the measurement of the threshold current of semiconductor lasers either as a laser chip placed on a submount to facilitate handling or as an assembled laser package.
Hazards
This procedure involves potentially hazardous operations as discussed in this section. During the measurement, a laser will emit non-visible light. Personnel are strongly cautioned never to look directly into the laser at anytime. Although the optical output power is generally not very high, virtually all the power is concentrated into a narrow frequency band, which implies that the energy can be focused into a very intense spot on the retina by the lens within the viewer's eyes.
Intent
Although light emission can occur as soon as current is applied to the semiconductor laser, it does not emit coherent light until the current exceeds a critical value, known as the threshold current. The threshold current is one of the most important parameters for lasers. This procedure provides standard .measurement techniques for semiconductor lasers.
This procedure covers the measurement of the threshold current of semiconductor lasers either as a laser chip placed on a submount to facilitate handling or as an assembled laser package.
Hazards
This procedure involves potentially hazardous operations as discussed in this section. During the measurement, a laser will emit non-visible light. Personnel are strongly cautioned never to look directly into the laser at anytime. Although the optical output power is generally not very high, virtually all the power is concentrated into a narrow frequency band, which implies that the energy can be focused into a very intense spot on the retina by the lens within the viewer's eyes.