IEEE Photonics Technology Letters,
Journal Year:
2025,
Volume and Issue:
37(3), P. 165 - 168
Published: Jan. 3, 2025
We
accomplish
a
compact
150-MHz
figure-9
Er:fiber
laser
through
the
use
of
hybrid
device
wavelength
division
multiplexer
and
phase
shifter.
By
combining
time-independent
rate
equation
nonlinear
Schrödinger
equation,
evolution
intracavity
field
towards
stable
mode
locking
state
is
presented.
further
quantify
output
characteristics
laser.
Explicitly,
5.8-mW
average
power,
center
1561.2
nm
3-dB
spectral
bandwidth
29.2
are
obtained.
More
importantly,
an
integrated
root-mean-square
relative
intensity
noise
0.0016%
[1
Hz,
1
MHz]
75.8
fs
timing
jitter
[100
measured
at
fundamental
repetition
rate.
Moreover,
by
referencing
to
radio
frequency,
locked
with
in-loop
instability
$2.78\times
10^{-12}$
1-s
gate
time.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(17), P. 22344 - 22360
Published: April 16, 2024
As
a
member
of
transition
metal
dichalcogenides
(TMDs),
NbTe2
has
work
function
5.32
eV
and
band
gap
0
at
the
Fermi
level,
which
enables
it
to
possess
broadband
absorption
characteristics
huge
potential
in
optoelectronic
devices.
In
this
work,
combination
liquid
phase
exfoliation
(LPE)
optical
deposition
methods
(ODMs)
were
used
fabricate
saturable
absorber
(SA).
Based
on
SA,
ring
passive
mode-locked
erbium-doped
fiber
laser
(PML-EDFL)
was
constructed
by
adding
SA
into
cavity.
A
switchable
single-
multiwavelength
(dual/triple/quadruple)
conventional
soliton
(CS)
bound-state
(BS)
observed
for
first
time.
The
results
reveal
that
excellent
(modulation
depth
2.6%,
saturation
intensity
177.4
MW/cm2,
unsaturated
loss
63.8%)
can
suppress
mode
competition
stabilize
oscillation.
This
study
expands
applications
nanosheets
ultrafast
optoelectronics.
proposed
PML-EDFL
extensive
high-capacity
all-optical
communication,
high-sensitivity
sensing,
high-precision
spectral
measurements,
high-energy-efficiency
photon
neural
networks.
Abstract
Temporal
solitons
have
been
the
focus
of
much
research
due
to
their
fascinating
physical
properties.
These
can
form
bound
states,
which
are
fundamentally
crucial
modes
in
fiber
laser
and
present
striking
analogies
with
matter
molecules
counterparts,
means
they
potential
applications
large-capacity
transmission
all-optical
information
storage.
Although
traditionally,
second-order
dispersion
has
dominant
for
conventional
solitons,
recent
experimental
theoretical
shown
that
pure-high-even-order
(PHEOD)
energy-width
scaling
arise
from
interaction
arbitrary
negative-even-order
Kerr
nonlinearity.
Despite
these
advancements,
on
states
PHEOD
is
currently
non-existent.
In
this
study,
we
obtained
a
using
an
intra-cavity
spectral
pulse
shaper
high-order
management.
Specifically,
experimentally
demonstrate
existence
pure-quartic,
-sextic,
-octic,
-decic
dispersion.
Numerical
simulations
corroborate
observations.
Furthermore,
vibrating
phase
soliton
pairs,
sliding
hybrid
tri-soliton
discovered
characterized.
results
broaden
fundamental
understanding
show
universality
multi-soliton
patterns.
Journal of Materiomics,
Journal Year:
2022,
Volume and Issue:
9(1), P. 183 - 190
Published: Aug. 31, 2022
In
the
present
work,
uniformly
sized
bismuthene
quantum
dots
(BiQDs)
with
an
average
diameter
of
26
nm
were
fabricated
via
solvothermal
approach.
By
transferring
BiQDs
onto
plane
micro-machined
D-shaped
fiber
(DSF),
a
new
type
saturable
absorber
(SA)
was
successfully
prepared.
Based
on
evanescent
field
effect
fiber,
prepared
SA
exhibits
excellent
absorption
properties
maximum
modulation
depth
5.1%
at
around
1.5
μm.
To
further
investigate
its
potential
applications
in
ultrafast
photonics,
we
demonstrated
passive
mode-locking
operation
erbium-doped
laser
(EDFL)
BiQDs/DSF-SA.
The
conventional
soliton
pulses
duration
835
fs
repetition
rate
9.23
MHz
and
dissipative
575
7.83
generated
successfully.
addition,
stable
bound
state
solitons
pulse
1.04
ps
sub-pulse
time
interval
15.9
also
obtained
based
by
adjusting
pump
power
polarization
state.
Our
work
reveals
great
capacity
BiQDs/DSF-SA
operations
promotes
explorative
investigation
bismuth-based
optoelectronic
devices.
Journal of Materiomics,
Journal Year:
2023,
Volume and Issue:
9(4), P. 642 - 650
Published: Feb. 8, 2023
Here,
we
investigated
the
nonlinear
optical
(NLO)
characteristics
of
carboxyl-functionalized
graphene
oxide
(GO-COOH)
in
near-infrared
(NIR)
region.
The
results
revealed
that
GO-COOH
samples
exhibit
strong
saturable
absorption
at
low
pump
levels
and
a
gradual
transition
to
reverse
(RSA)
with
increasing
power.
Then
absorber
(SA)
by
depositing
on
side-polished
fiber
(SPF)
was
employed
Yb-
Er-doped
lasers.
Stable
ultrashort
pulses
operating
dissipative
soliton
(DS)
conventional
(CS)
regimes
were
obtained
pulse
widths
26.6
ps
968
fs,
respectively.
Besides,
resonance
(DSR)
phenomenon
caused
RSA
also
observed
high-stable
DSR
mode-locked
maximum
energy
1.91
nJ
0.74
YDFL
EDFL
These
not
only
reveal
potentiality
ultrafast
photonics
applications
but
open
new
avenue
explore
high-pulse-energy
laser
sources
based
two-dimensional
materials.
Abstract
Mamyshev
oscillators
(MOs)
have
attracted
significant
attention
given
their
potential
in
yielding
ultrafast
lasers
with
high
peak
power.
Based
on
step‐like
saturable
absorbers
and
self‐similar
evolution
the
gain
fiber,
MO
technology
features
an
advanced
system
capable
of
generating
ultrastable
femtosecond
pulses
ultrahigh
In
this
review,
principle
is
presented
terms
transmission
function
tolerance
to
nonlinear
phase
shift
recent
progress
reported
output
performance
MO,
manifested
through
power,
few‐cycles,
repetition
rate,
supercontinuum
generation.
various
operation
wavelengths
(1,
1.5,
2
μm)
are
examined,
starting
methods
fully
discussed,
followed
by
a
detailed
account
diverse
applications
areas
such
as
biomedical
imaging
material
processing.
current
progress,
prospective
challenges
future
directions
highlighted
discussed.
Nanomanufacturing and Metrology,
Journal Year:
2023,
Volume and Issue:
6(1)
Published: Sept. 22, 2023
Abstract
Owing
to
their
compactness,
robustness,
low
cost,
high
stability,
and
diffraction-limited
beam
quality,
mode-locked
fiber
lasers
play
an
indispensable
role
in
micro/nanomanufacturing,
precision
metrology,
laser
spectroscopy,
LiDAR,
biomedical
imaging,
optical
communication,
soliton
physics.
Mode-locked
are
a
highly
complex
nonlinear
system,
understanding
the
underlying
physical
mechanisms
or
flexible
manipulation
of
ultrafast
output
is
challenging.
The
traditional
research
paradigm
often
relies
on
known
models,
sophisticated
numerical
calculations,
exploratory
experimental
attempts.
However,
when
dealing
with
several
issues,
these
approaches
face
limitations
struggles
finding
effective
solutions.
As
emerging
data-driven
analysis
processing
technology,
artificial
intelligence
(AI)
has
brought
new
insights
into
development
lasers.
This
review
highlights
areas
where
AI
exhibits
potential
accelerating
lasers,
including
dynamics
prediction,
ultrashort
pulse
characterization,
inverse
design,
automatic
control
Furthermore,
challenges
future
discussed.
Advanced Photonics Nexus,
Journal Year:
2024,
Volume and Issue:
3(02)
Published: Feb. 29, 2024
Although
visible
femtosecond
lasers
based
on
nonlinear
frequency
conversion
of
Ti:sapphire
oscillators
or
near-infrared
ultrafast
have
been
well
developed,
limitations
in
terms
footprint,
cost,
and
efficiency
called
for
alternative
laser
solutions.
The
fiber
mode-locked
oscillator
as
an
ideal
solution
has
achieved
great
success
the
0.9
to
3.5
μm
infrared
wavelengths,
but
remains
outstanding
challenge
spectrum
(390
780
nm).
Here,
we
tackle
this
by
introducing
a
visible-wavelength
along
with
amplifier.
This
emits
red
light
at
635
nm,
employs
figure-nine
cavity
configuration,
applies
double-clad
Pr3+-doped
fluoride
gain
medium,
incorporates
phase-biased
amplifying
loop
mirror
(PB-NALM)
mode
locking,
utilizes
pair
customized
high-efficiency
high-groove-density
diffraction
gratings
dispersion
management.
Visible
self-starting
locking
established
PB-NALM
directly
yields
pulses
minimum
pulse
duration
196
fs
repetition
rate
53.957
MHz
from
oscillator.
Precise
control
grating
spacing
can
switch
state
dissipative
soliton
stretched-pulse
conventional
soliton.
In
addition,
chirped-pulse
amplification
system
built
alongside
immensely
boosts
performance,
resulting
average
output
power
over
1
W,
energy
19.55
nJ,
dechirped
230
fs.
Our
result
represents
concrete
step
toward
high-power
covering
spectral
region
could
important
applications
industrial
processing,
biomedicine,
scientific
research.
