< NEG collimator components > contributes to miniaturizing
products and simplifying optical alignment to achieve low
costs.
The D lens is for the collimator lens, which is manufactured
from high precision ball lens by cylindrical grinding and
is covered by high performance AR coating.With the change
of wavelength on AR coating, we can offer D lens with the
variety of the wavelength.
The D lens can contribute to achieving high optical performance
and miniaturizing products.
GC capillary is a precision capillary made of glass-ceramics.
GC capillary contributes to low eccentricity of the fiber
core thanks to the self-alignment effect of the glass- ceramics.
By the assembly of the D lens and GC capillary with NEG's
precision glass tube, it can be achieved that the high optical
performance (insertion loss and return loss) and further
the low angle of optical axis, which had not been accomplished
by conventional collimators.
< Details of collimator components >
D lens We offer the followings as standard depending
on the optical properties.
| Cylinder
diameter (D) |
Ball
diameter (d) /Recommended working distance |
AR
coating / Return Loss |
| Dia 1.00mm Type |
Dia 2.00mm / 5-15mm |
A Spec / less than
-65dB (1550nm) |
| Dia 1.25mm Type |
Dia 3.50mm / 10-25mm |
B Spec / less than
-60dB (1550nm) |
| Dia
1.80mm Type |
*Both
types can be achievable of less than 0.2dB insertion
loss.
(Within the recommended working distance) |
Dual
Wavelength / less than -55dB (1310&1550nm) |
You can ask the specification of D lens
without the standard.
Capillary : We offer two types depending on the eccentricity
property.
<Micro Capillary>Popular borosilicate glass
<GC capillary>High performance glass-ceramics
High precision glass tube : We offer the tube as
the collimator holder.
*We can offer
the proper specification depending on customer's design.
You can also order each component separately. |
